Skip to content
Note: The Lovaas Model of Applied Behavior Analysis was not responsive to the CEBC's inquiry. The following information was obtained from publicly available sources.

Topic Areas

Topic Areas

Target Population

Children between the ages of two and eight who have developmental delays

Target Population

Children between the ages of two and eight who have developmental delays

Program Overview

The Lovaas Model of Applied Behavior Analysis is a behavioral treatment model typically starts with children between the ages of two and eight who have developmental delays. Children typically transition to different services as they progress through elementary school and no later than the age of twelve. While treatment is always based on the principles of applied behavior analysis, its implementation varies based on a child's unique needs.

The Lovaas Model was created as a comprehensive, integrated program in which skills complement and build upon each other. The intervention progresses systematically through stages of learning and emphasizes individualization of curriculum based on each child's strengths and weaknesses.

Program Overview

The Lovaas Model of Applied Behavior Analysis is a behavioral treatment model typically starts with children between the ages of two and eight who have developmental delays. Children typically transition to different services as they progress through elementary school and no later than the age of twelve. While treatment is always based on the principles of applied behavior analysis, its implementation varies based on a child's unique needs.

The Lovaas Model was created as a comprehensive, integrated program in which skills complement and build upon each other. The intervention progresses systematically through stages of learning and emphasizes individualization of curriculum based on each child's strengths and weaknesses.

Contact Information

Scott Wright

Contact Information

Scott Wright

Logic Model

The program representative did not provide information about a Logic Model for Lovaas Model of Applied Behavior Analysis .

Logic Model

The program representative did not provide information about a Logic Model for Lovaas Model of Applied Behavior Analysis .

Program Delivery

Homework

This program does not include a homework component.


Languages

Lovaas Model of Applied Behavior Analysis has materials available in the following languages other than English:

For information on which materials are available in this language, please check on the program's website or contact the program representative (contact information is listed in this page).


Program Delivery

Homework

This program does not include a homework component.


Languages

Lovaas Model of Applied Behavior Analysis has materials available in the following languages other than English:

For information on which materials are available in this language, please check on the program's website or contact the program representative (contact information is listed in this page).


Manuals and Training

Publicly available information indicates there is some training available for this program. See contact info.


Manual Information

There is a manual that describes how to deliver this program.


Training Information

There is training available for this program.

Manuals and Training

Publicly available information indicates there is some training available for this program. See contact info.


Manual Information

There is a manual that describes how to deliver this program.


Training Information

There is training available for this program.

Implementation Information

Pre-Implementation Materials

There are no pre-implementation materials to measure organizational or provider readiness for Lovaas Model of Applied Behavior Analysis.


Formal Support for Implementation

There is no formal support available for implementation of Lovaas Model of Applied Behavior Analysis.


Fidelity Measures

There are no fidelity measures for Lovaas Model of Applied Behavior Analysis.


Established Psychometrics

There are no established psychometrics for Lovaas Model of Applied Behavior Analysis.


Fidelity Measures Required

No fidelity measures are required for Lovaas Model of Applied Behavior Analysis.


Implementation Guides or Manuals

There are no implementation guides or manuals for Lovaas Model of Applied Behavior Analysis.


Implementation Cost

There are no studies of the costs of Lovaas Model of Applied Behavior Analysis.


Research on How to Implement the Program

Research has not been conducted on how to implement Lovaas Model of Applied Behavior Analysis.

Implementation Information

Pre-Implementation Materials

There are no pre-implementation materials to measure organizational or provider readiness for Lovaas Model of Applied Behavior Analysis.


Formal Support for Implementation

There is no formal support available for implementation of Lovaas Model of Applied Behavior Analysis.


Fidelity Measures

There are no fidelity measures for Lovaas Model of Applied Behavior Analysis.


Established Psychometrics

There are no established psychometrics for Lovaas Model of Applied Behavior Analysis.


Fidelity Measures Required

No fidelity measures are required for Lovaas Model of Applied Behavior Analysis.


Implementation Guides or Manuals

There are no implementation guides or manuals for Lovaas Model of Applied Behavior Analysis.


Implementation Cost

There are no studies of the costs of Lovaas Model of Applied Behavior Analysis.


Research on How to Implement the Program

Research has not been conducted on how to implement Lovaas Model of Applied Behavior Analysis.

Relevant Published, Peer-Reviewed Research

Child Welfare Outcome: Child/Family Well-Being

"What is included in the Relevant Published, Peer-Reviewed Research section?"

  • Lovaas, O. I. (1987). Behavioral treatment and normal educational and intellectual functioning in young autistic children. Journal of Consulting and Clinical Psychology, 55(1), 3–9. https://doi.org/10.1037/0022-006X.55.1.3

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 59

    Population:

    • Age — Less than 46 months
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with a diagnosis of autism.

    Location/Institution: Not specified

    Summary:

    The purpose of the study was to report the results of behavior modification treatment [now called Lovaas Model of Applied Behavior Analysis] for two groups of similarly constituted, young autistic children. Participants were assigned to one of two treatment groups: an intensive-treatment experimental group and a minimal-treatment control group. A third control group was added that did not receive the Lovaas Model method and had no contact with the project. Measures utilized include the Bayley Scales of Infant Development, the Cattell Infant Intelligence Scale, the Stanford-Binet Intelligence Scale, the Gesell Infant Development Scale, the Vineland Social Maturity Scale, video-taped recordings of subject’s free-play behavior, and a parent interview. Results indicate that follow-up data from the long-term intensive-treatment group showed that 47% achieved normal intellectual and educational functioning, with normal-range IQ scores and successful first-grade performance in public schools. Another 40% were mildly retarded and assigned to special classes for the language delayed, and only 10% were profoundly retarded and assigned to classes for the autistic/retarded. In contrast, only 2% of the control group children achieved normal educational and intellectual functioning, 45% were mildly retarded and placed in language-delayed classes, and 53% were severely retarded and placed in autistic/retarded classes. Limitations include the lack of randomization; the unlikeliness that a therapist or investigator could replicate the treatment program for the experimental group without prior extensive theoretical and supervised practical experience; concerns about the generalizability of the data to older autistic children; and many treatment variables are left unexplored, such as the effect of normal peers.

    Length of controlled postintervention follow-up: Not specified.

  • Eikeseth, S., Smith, T., Jahr, E., & Eldevik, S. (2002). Intensive behavioral treatment at school for 4- to 7-year-old children with autism: A 1-year comparison controlled study. Behavior Modification, 26(1), 49–68. https://doi.org/10.1177/0145445502026001004

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 25

    Population:

    • Age — 4–7 years
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with autism.

    Location/Institution: Counties of Akershus and Vestfold, Norway

    Summary:

    The purpose of the study was to evaluate one year of intensive treatment for children with autism. Participants were assigned to either behavioral treatment [now called Lovaas Model of Applied Behavior Analysis] or eclectic treatment. The two treatment groups received similar amounts of treatment (Mean=28.52 hours per week at the child’s school). Measures utilized include the Wechsler Preschool and Primary Scale of Intelligence–Revised, (WPPSI-R) or the Wechsler Intelligence Scale for Children–Revised (WISC-R), the Merrill-Palmer Scale of Mental Tests, the Reynell Developmental Language Scales, and the Vineland Adaptive Behavior Scales. Results indicate that children in the behavioral treatment group made significantly larger gains on standardized tests than children in the eclectic treatment group. Results also suggest that some 4- to 7-year-olds may make large gains with intensive behavioral treatment, that such treatment can be successfully implemented in school settings, and that specific aspects of behavioral treatment (not just its intensity) may account for favorable outcomes. Limitations include the lack of randomization, lack of follow-up, small sample size, measures that focused more on cognitive than social development, and lower treatment intensity than has been recommended by the developers of the behavioral treatment model used in the study.

    Length of controlled postintervention follow-up: None.

  • Sallows, G. O., & Graupner, T. D. (2005). Intensive behavioral treatment for children with autism: Four-year outcome and predictors. American Journal on Mental Retardation, 110(6), 417–438. https://psycnet.apa.org/record/2005-14953-001

    Type of Study: Randomized controlled trial

    Number of participants: 24

    Population:

    • Age — 24–42 months
    • Race/Ethnicity — Not specified
    • Gender — 19 Male and 5 Female
    • Status — Participants were recruited through local birth to three (special education) programs.

    Location/Institution: Wisconsin

    Summary:

    The purpose of the study was to replicate the parameters of the early intensive behavioral treatment developed at UCLA [now called Lovaas Model of Applied Behavior Analysis]. Participants were randomly assigned to a clinic-directed group (Lovaas) or to a parent-directed group that received intensive hours but less supervision. Measures utilized include the Mental Development Index, the Bayley Scales of Infant Development, Second Edition, the Merrill-Palmer Scale of Mental Tests, Reynell Developmental Language Scales, the Vineland Adaptive Behavior Scales, the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI), the Wechsler Intelligence Scale for Children (WISC-III), the Leiter-R, the Merrill-Palmer Clinical Evaluation of Language Fundamentals, Third Edition (CELF III), the Personality Inventory for Children, the Child Behavior Checklist, the Woodcock-Johnson III Tests of Achievement, and the Early Learning Measure. Results indicate that the outcomes after 4 years of treatment, including cognitive, language, adaptive, social, and academic measures, were similar for both groups. After combining groups, it was found that 48% of all children showed rapid learning, achieved average posttreatment scores, and at age 7, were succeeding in regular education classrooms. Treatment outcome was best predicted by pretreatment imitation, language, and social responsiveness. Limitations include the small sample size, lack of follow up, and concerns about generalizability due to gender.

    Length of controlled postintervention follow-up: None.

  • Cohen, H., Amerine-Dickens, M., & Smith, T. (2006). Early intensive behavioral treatment: Replication of the UCLA model in a community setting. Journal of Developmental & Behavioral Pediatrics, 27(2), S145–S155. https://10.1097/00004703-200604002-00013

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 42

    Population:

    • Age — 18–42 months
    • Race/Ethnicity — Not specified
    • Gender — 4:1 Male to Female
    • Status — Participants were children with a primary diagnosis of autistic disorder or Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS).

    Location/Institution: Valley Mountain Regional Center; Stockton, CA and the child’s Special Education Local Planning Area (SELPA) of residence

    Summary:

    The purpose of the study was to compare two groups: (1) the early intensive behavioral treatment (EIBT) group [now called Lovaas Model of Applied Behavior Analysis] and (2) special education classes at local public schools. Participants were assigned to either the EIBT group or to a comparison group that received community services that their family selected from the Matrix of Educational Options. This matrix delineated the service agencies in the child’s area of residence and their eligibility criteria, along with the roles and responsibilities of parents, service providers, and funding agencies in implementing interventions. Measures utilized include the Autism Diagnostic Interview-Revised, the Bayley Scales of Infant Development-Revised (BSID-R), the Wechsler Preschool and Primary Scales of Intelligence, the Reynell Developmental Language Scales, the Merrill-Palmer Scale of Mental Tests, and the Vineland Adaptive Behavior Scales. Results indicate that with treatment, the EIBT group obtained significantly higher IQ and adaptive behavior scores than did the comparison group. No difference between groups was found in either language comprehension or nonverbal skills. Six of the 21 EIBT children were fully included in regular education without assistance at Year 3, and 11 others were included with support; in contrast, only 1 child from the comparison group was placed primarily in regular education. Limitations include that the EIBT group had more children with autism and fewer with PDD-NOS than did the comparison group, the comparison group received such diverse interventions that a measure of treatment fidelity could not be applied, the nonrandomization of participants, the small sample size, and the lack of follow-up.

    Length of controlled postintervention follow-up: None.

Relevant Published, Peer-Reviewed Research

Child Welfare Outcome: Child/Family Well-Being

"What is included in the Relevant Published, Peer-Reviewed Research section?"

  • Lovaas, O. I. (1987). Behavioral treatment and normal educational and intellectual functioning in young autistic children. Journal of Consulting and Clinical Psychology, 55(1), 3–9. https://doi.org/10.1037/0022-006X.55.1.3

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 59

    Population:

    • Age — Less than 46 months
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with a diagnosis of autism.

    Location/Institution: Not specified

    Summary:

    The purpose of the study was to report the results of behavior modification treatment [now called Lovaas Model of Applied Behavior Analysis] for two groups of similarly constituted, young autistic children. Participants were assigned to one of two treatment groups: an intensive-treatment experimental group and a minimal-treatment control group. A third control group was added that did not receive the Lovaas Model method and had no contact with the project. Measures utilized include the Bayley Scales of Infant Development, the Cattell Infant Intelligence Scale, the Stanford-Binet Intelligence Scale, the Gesell Infant Development Scale, the Vineland Social Maturity Scale, video-taped recordings of subject’s free-play behavior, and a parent interview. Results indicate that follow-up data from the long-term intensive-treatment group showed that 47% achieved normal intellectual and educational functioning, with normal-range IQ scores and successful first-grade performance in public schools. Another 40% were mildly retarded and assigned to special classes for the language delayed, and only 10% were profoundly retarded and assigned to classes for the autistic/retarded. In contrast, only 2% of the control group children achieved normal educational and intellectual functioning, 45% were mildly retarded and placed in language-delayed classes, and 53% were severely retarded and placed in autistic/retarded classes. Limitations include the lack of randomization; the unlikeliness that a therapist or investigator could replicate the treatment program for the experimental group without prior extensive theoretical and supervised practical experience; concerns about the generalizability of the data to older autistic children; and many treatment variables are left unexplored, such as the effect of normal peers.

    Length of controlled postintervention follow-up: Not specified.

  • Eikeseth, S., Smith, T., Jahr, E., & Eldevik, S. (2002). Intensive behavioral treatment at school for 4- to 7-year-old children with autism: A 1-year comparison controlled study. Behavior Modification, 26(1), 49–68. https://doi.org/10.1177/0145445502026001004

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 25

    Population:

    • Age — 4–7 years
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with autism.

    Location/Institution: Counties of Akershus and Vestfold, Norway

    Summary:

    The purpose of the study was to evaluate one year of intensive treatment for children with autism. Participants were assigned to either behavioral treatment [now called Lovaas Model of Applied Behavior Analysis] or eclectic treatment. The two treatment groups received similar amounts of treatment (Mean=28.52 hours per week at the child’s school). Measures utilized include the Wechsler Preschool and Primary Scale of Intelligence–Revised, (WPPSI-R) or the Wechsler Intelligence Scale for Children–Revised (WISC-R), the Merrill-Palmer Scale of Mental Tests, the Reynell Developmental Language Scales, and the Vineland Adaptive Behavior Scales. Results indicate that children in the behavioral treatment group made significantly larger gains on standardized tests than children in the eclectic treatment group. Results also suggest that some 4- to 7-year-olds may make large gains with intensive behavioral treatment, that such treatment can be successfully implemented in school settings, and that specific aspects of behavioral treatment (not just its intensity) may account for favorable outcomes. Limitations include the lack of randomization, lack of follow-up, small sample size, measures that focused more on cognitive than social development, and lower treatment intensity than has been recommended by the developers of the behavioral treatment model used in the study.

    Length of controlled postintervention follow-up: None.

  • Sallows, G. O., & Graupner, T. D. (2005). Intensive behavioral treatment for children with autism: Four-year outcome and predictors. American Journal on Mental Retardation, 110(6), 417–438. https://psycnet.apa.org/record/2005-14953-001

    Type of Study: Randomized controlled trial

    Number of participants: 24

    Population:

    • Age — 24–42 months
    • Race/Ethnicity — Not specified
    • Gender — 19 Male and 5 Female
    • Status — Participants were recruited through local birth to three (special education) programs.

    Location/Institution: Wisconsin

    Summary:

    The purpose of the study was to replicate the parameters of the early intensive behavioral treatment developed at UCLA [now called Lovaas Model of Applied Behavior Analysis]. Participants were randomly assigned to a clinic-directed group (Lovaas) or to a parent-directed group that received intensive hours but less supervision. Measures utilized include the Mental Development Index, the Bayley Scales of Infant Development, Second Edition, the Merrill-Palmer Scale of Mental Tests, Reynell Developmental Language Scales, the Vineland Adaptive Behavior Scales, the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI), the Wechsler Intelligence Scale for Children (WISC-III), the Leiter-R, the Merrill-Palmer Clinical Evaluation of Language Fundamentals, Third Edition (CELF III), the Personality Inventory for Children, the Child Behavior Checklist, the Woodcock-Johnson III Tests of Achievement, and the Early Learning Measure. Results indicate that the outcomes after 4 years of treatment, including cognitive, language, adaptive, social, and academic measures, were similar for both groups. After combining groups, it was found that 48% of all children showed rapid learning, achieved average posttreatment scores, and at age 7, were succeeding in regular education classrooms. Treatment outcome was best predicted by pretreatment imitation, language, and social responsiveness. Limitations include the small sample size, lack of follow up, and concerns about generalizability due to gender.

    Length of controlled postintervention follow-up: None.

  • Cohen, H., Amerine-Dickens, M., & Smith, T. (2006). Early intensive behavioral treatment: Replication of the UCLA model in a community setting. Journal of Developmental & Behavioral Pediatrics, 27(2), S145–S155. https://10.1097/00004703-200604002-00013

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 42

    Population:

    • Age — 18–42 months
    • Race/Ethnicity — Not specified
    • Gender — 4:1 Male to Female
    • Status — Participants were children with a primary diagnosis of autistic disorder or Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS).

    Location/Institution: Valley Mountain Regional Center; Stockton, CA and the child’s Special Education Local Planning Area (SELPA) of residence

    Summary:

    The purpose of the study was to compare two groups: (1) the early intensive behavioral treatment (EIBT) group [now called Lovaas Model of Applied Behavior Analysis] and (2) special education classes at local public schools. Participants were assigned to either the EIBT group or to a comparison group that received community services that their family selected from the Matrix of Educational Options. This matrix delineated the service agencies in the child’s area of residence and their eligibility criteria, along with the roles and responsibilities of parents, service providers, and funding agencies in implementing interventions. Measures utilized include the Autism Diagnostic Interview-Revised, the Bayley Scales of Infant Development-Revised (BSID-R), the Wechsler Preschool and Primary Scales of Intelligence, the Reynell Developmental Language Scales, the Merrill-Palmer Scale of Mental Tests, and the Vineland Adaptive Behavior Scales. Results indicate that with treatment, the EIBT group obtained significantly higher IQ and adaptive behavior scores than did the comparison group. No difference between groups was found in either language comprehension or nonverbal skills. Six of the 21 EIBT children were fully included in regular education without assistance at Year 3, and 11 others were included with support; in contrast, only 1 child from the comparison group was placed primarily in regular education. Limitations include that the EIBT group had more children with autism and fewer with PDD-NOS than did the comparison group, the comparison group received such diverse interventions that a measure of treatment fidelity could not be applied, the nonrandomization of participants, the small sample size, and the lack of follow-up.

    Length of controlled postintervention follow-up: None.

Additional References

  • Lovaas, O. I. (2003). Teaching individuals with developmental delays: Basic intervention techniques. Pro-ed.

Additional References

  • Lovaas, O. I. (2003). Teaching individuals with developmental delays: Basic intervention techniques. Pro-ed.

Topic Areas

Topic Areas

Target Population

Children between the ages of two and eight who have developmental delays

Target Population

Children between the ages of two and eight who have developmental delays

Program Overview

The Lovaas Model of Applied Behavior Analysis is a behavioral treatment model typically starts with children between the ages of two and eight who have developmental delays. Children typically transition to different services as they progress through elementary school and no later than the age of twelve. While treatment is always based on the principles of applied behavior analysis, its implementation varies based on a child's unique needs.

The Lovaas Model was created as a comprehensive, integrated program in which skills complement and build upon each other. The intervention progresses systematically through stages of learning and emphasizes individualization of curriculum based on each child's strengths and weaknesses.

Program Overview

The Lovaas Model of Applied Behavior Analysis is a behavioral treatment model typically starts with children between the ages of two and eight who have developmental delays. Children typically transition to different services as they progress through elementary school and no later than the age of twelve. While treatment is always based on the principles of applied behavior analysis, its implementation varies based on a child's unique needs.

The Lovaas Model was created as a comprehensive, integrated program in which skills complement and build upon each other. The intervention progresses systematically through stages of learning and emphasizes individualization of curriculum based on each child's strengths and weaknesses.

Contact Information

Scott Wright

Contact Information

Scott Wright

Logic Model

The program representative did not provide information about a Logic Model for Lovaas Model of Applied Behavior Analysis .

Logic Model

The program representative did not provide information about a Logic Model for Lovaas Model of Applied Behavior Analysis .

Program Delivery

Homework

This program does not include a homework component.


Languages

Lovaas Model of Applied Behavior Analysis has materials available in the following languages other than English:

For information on which materials are available in this language, please check on the program's website or contact the program representative (contact information is listed in this page).


Program Delivery

Homework

This program does not include a homework component.


Languages

Lovaas Model of Applied Behavior Analysis has materials available in the following languages other than English:

For information on which materials are available in this language, please check on the program's website or contact the program representative (contact information is listed in this page).


Manuals and Training

Publicly available information indicates there is some training available for this program. See contact info.


Manual Information

There is a manual that describes how to deliver this program.


Training Information

There is training available for this program.

Manuals and Training

Publicly available information indicates there is some training available for this program. See contact info.


Manual Information

There is a manual that describes how to deliver this program.


Training Information

There is training available for this program.

Implementation Information

Pre-Implementation Materials

There are no pre-implementation materials to measure organizational or provider readiness for Lovaas Model of Applied Behavior Analysis.


Formal Support for Implementation

There is no formal support available for implementation of Lovaas Model of Applied Behavior Analysis.


Fidelity Measures

There are no fidelity measures for Lovaas Model of Applied Behavior Analysis.


Established Psychometrics

There are no established psychometrics for Lovaas Model of Applied Behavior Analysis.


Fidelity Measures Required

No fidelity measures are required for Lovaas Model of Applied Behavior Analysis.


Implementation Guides or Manuals

There are no implementation guides or manuals for Lovaas Model of Applied Behavior Analysis.


Implementation Cost

There are no studies of the costs of Lovaas Model of Applied Behavior Analysis.


Research on How to Implement the Program

Research has not been conducted on how to implement Lovaas Model of Applied Behavior Analysis.

Implementation Information

Pre-Implementation Materials

There are no pre-implementation materials to measure organizational or provider readiness for Lovaas Model of Applied Behavior Analysis.


Formal Support for Implementation

There is no formal support available for implementation of Lovaas Model of Applied Behavior Analysis.


Fidelity Measures

There are no fidelity measures for Lovaas Model of Applied Behavior Analysis.


Established Psychometrics

There are no established psychometrics for Lovaas Model of Applied Behavior Analysis.


Fidelity Measures Required

No fidelity measures are required for Lovaas Model of Applied Behavior Analysis.


Implementation Guides or Manuals

There are no implementation guides or manuals for Lovaas Model of Applied Behavior Analysis.


Implementation Cost

There are no studies of the costs of Lovaas Model of Applied Behavior Analysis.


Research on How to Implement the Program

Research has not been conducted on how to implement Lovaas Model of Applied Behavior Analysis.

Relevant Published, Peer-Reviewed Research

Child Welfare Outcome: Child/Family Well-Being

"What is included in the Relevant Published, Peer-Reviewed Research section?"

  • Lovaas, O. I. (1987). Behavioral treatment and normal educational and intellectual functioning in young autistic children. Journal of Consulting and Clinical Psychology, 55(1), 3–9. https://doi.org/10.1037/0022-006X.55.1.3

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 59

    Population:

    • Age — Less than 46 months
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with a diagnosis of autism.

    Location/Institution: Not specified

    Summary:

    The purpose of the study was to report the results of behavior modification treatment [now called Lovaas Model of Applied Behavior Analysis] for two groups of similarly constituted, young autistic children. Participants were assigned to one of two treatment groups: an intensive-treatment experimental group and a minimal-treatment control group. A third control group was added that did not receive the Lovaas Model method and had no contact with the project. Measures utilized include the Bayley Scales of Infant Development, the Cattell Infant Intelligence Scale, the Stanford-Binet Intelligence Scale, the Gesell Infant Development Scale, the Vineland Social Maturity Scale, video-taped recordings of subject’s free-play behavior, and a parent interview. Results indicate that follow-up data from the long-term intensive-treatment group showed that 47% achieved normal intellectual and educational functioning, with normal-range IQ scores and successful first-grade performance in public schools. Another 40% were mildly retarded and assigned to special classes for the language delayed, and only 10% were profoundly retarded and assigned to classes for the autistic/retarded. In contrast, only 2% of the control group children achieved normal educational and intellectual functioning, 45% were mildly retarded and placed in language-delayed classes, and 53% were severely retarded and placed in autistic/retarded classes. Limitations include the lack of randomization; the unlikeliness that a therapist or investigator could replicate the treatment program for the experimental group without prior extensive theoretical and supervised practical experience; concerns about the generalizability of the data to older autistic children; and many treatment variables are left unexplored, such as the effect of normal peers.

    Length of controlled postintervention follow-up: Not specified.

  • Eikeseth, S., Smith, T., Jahr, E., & Eldevik, S. (2002). Intensive behavioral treatment at school for 4- to 7-year-old children with autism: A 1-year comparison controlled study. Behavior Modification, 26(1), 49–68. https://doi.org/10.1177/0145445502026001004

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 25

    Population:

    • Age — 4–7 years
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with autism.

    Location/Institution: Counties of Akershus and Vestfold, Norway

    Summary:

    The purpose of the study was to evaluate one year of intensive treatment for children with autism. Participants were assigned to either behavioral treatment [now called Lovaas Model of Applied Behavior Analysis] or eclectic treatment. The two treatment groups received similar amounts of treatment (Mean=28.52 hours per week at the child’s school). Measures utilized include the Wechsler Preschool and Primary Scale of Intelligence–Revised, (WPPSI-R) or the Wechsler Intelligence Scale for Children–Revised (WISC-R), the Merrill-Palmer Scale of Mental Tests, the Reynell Developmental Language Scales, and the Vineland Adaptive Behavior Scales. Results indicate that children in the behavioral treatment group made significantly larger gains on standardized tests than children in the eclectic treatment group. Results also suggest that some 4- to 7-year-olds may make large gains with intensive behavioral treatment, that such treatment can be successfully implemented in school settings, and that specific aspects of behavioral treatment (not just its intensity) may account for favorable outcomes. Limitations include the lack of randomization, lack of follow-up, small sample size, measures that focused more on cognitive than social development, and lower treatment intensity than has been recommended by the developers of the behavioral treatment model used in the study.

    Length of controlled postintervention follow-up: None.

  • Sallows, G. O., & Graupner, T. D. (2005). Intensive behavioral treatment for children with autism: Four-year outcome and predictors. American Journal on Mental Retardation, 110(6), 417–438. https://psycnet.apa.org/record/2005-14953-001

    Type of Study: Randomized controlled trial

    Number of participants: 24

    Population:

    • Age — 24–42 months
    • Race/Ethnicity — Not specified
    • Gender — 19 Male and 5 Female
    • Status — Participants were recruited through local birth to three (special education) programs.

    Location/Institution: Wisconsin

    Summary:

    The purpose of the study was to replicate the parameters of the early intensive behavioral treatment developed at UCLA [now called Lovaas Model of Applied Behavior Analysis]. Participants were randomly assigned to a clinic-directed group (Lovaas) or to a parent-directed group that received intensive hours but less supervision. Measures utilized include the Mental Development Index, the Bayley Scales of Infant Development, Second Edition, the Merrill-Palmer Scale of Mental Tests, Reynell Developmental Language Scales, the Vineland Adaptive Behavior Scales, the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI), the Wechsler Intelligence Scale for Children (WISC-III), the Leiter-R, the Merrill-Palmer Clinical Evaluation of Language Fundamentals, Third Edition (CELF III), the Personality Inventory for Children, the Child Behavior Checklist, the Woodcock-Johnson III Tests of Achievement, and the Early Learning Measure. Results indicate that the outcomes after 4 years of treatment, including cognitive, language, adaptive, social, and academic measures, were similar for both groups. After combining groups, it was found that 48% of all children showed rapid learning, achieved average posttreatment scores, and at age 7, were succeeding in regular education classrooms. Treatment outcome was best predicted by pretreatment imitation, language, and social responsiveness. Limitations include the small sample size, lack of follow up, and concerns about generalizability due to gender.

    Length of controlled postintervention follow-up: None.

  • Cohen, H., Amerine-Dickens, M., & Smith, T. (2006). Early intensive behavioral treatment: Replication of the UCLA model in a community setting. Journal of Developmental & Behavioral Pediatrics, 27(2), S145–S155. https://10.1097/00004703-200604002-00013

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 42

    Population:

    • Age — 18–42 months
    • Race/Ethnicity — Not specified
    • Gender — 4:1 Male to Female
    • Status — Participants were children with a primary diagnosis of autistic disorder or Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS).

    Location/Institution: Valley Mountain Regional Center; Stockton, CA and the child’s Special Education Local Planning Area (SELPA) of residence

    Summary:

    The purpose of the study was to compare two groups: (1) the early intensive behavioral treatment (EIBT) group [now called Lovaas Model of Applied Behavior Analysis] and (2) special education classes at local public schools. Participants were assigned to either the EIBT group or to a comparison group that received community services that their family selected from the Matrix of Educational Options. This matrix delineated the service agencies in the child’s area of residence and their eligibility criteria, along with the roles and responsibilities of parents, service providers, and funding agencies in implementing interventions. Measures utilized include the Autism Diagnostic Interview-Revised, the Bayley Scales of Infant Development-Revised (BSID-R), the Wechsler Preschool and Primary Scales of Intelligence, the Reynell Developmental Language Scales, the Merrill-Palmer Scale of Mental Tests, and the Vineland Adaptive Behavior Scales. Results indicate that with treatment, the EIBT group obtained significantly higher IQ and adaptive behavior scores than did the comparison group. No difference between groups was found in either language comprehension or nonverbal skills. Six of the 21 EIBT children were fully included in regular education without assistance at Year 3, and 11 others were included with support; in contrast, only 1 child from the comparison group was placed primarily in regular education. Limitations include that the EIBT group had more children with autism and fewer with PDD-NOS than did the comparison group, the comparison group received such diverse interventions that a measure of treatment fidelity could not be applied, the nonrandomization of participants, the small sample size, and the lack of follow-up.

    Length of controlled postintervention follow-up: None.

Relevant Published, Peer-Reviewed Research

Child Welfare Outcome: Child/Family Well-Being

"What is included in the Relevant Published, Peer-Reviewed Research section?"

  • Lovaas, O. I. (1987). Behavioral treatment and normal educational and intellectual functioning in young autistic children. Journal of Consulting and Clinical Psychology, 55(1), 3–9. https://doi.org/10.1037/0022-006X.55.1.3

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 59

    Population:

    • Age — Less than 46 months
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with a diagnosis of autism.

    Location/Institution: Not specified

    Summary:

    The purpose of the study was to report the results of behavior modification treatment [now called Lovaas Model of Applied Behavior Analysis] for two groups of similarly constituted, young autistic children. Participants were assigned to one of two treatment groups: an intensive-treatment experimental group and a minimal-treatment control group. A third control group was added that did not receive the Lovaas Model method and had no contact with the project. Measures utilized include the Bayley Scales of Infant Development, the Cattell Infant Intelligence Scale, the Stanford-Binet Intelligence Scale, the Gesell Infant Development Scale, the Vineland Social Maturity Scale, video-taped recordings of subject’s free-play behavior, and a parent interview. Results indicate that follow-up data from the long-term intensive-treatment group showed that 47% achieved normal intellectual and educational functioning, with normal-range IQ scores and successful first-grade performance in public schools. Another 40% were mildly retarded and assigned to special classes for the language delayed, and only 10% were profoundly retarded and assigned to classes for the autistic/retarded. In contrast, only 2% of the control group children achieved normal educational and intellectual functioning, 45% were mildly retarded and placed in language-delayed classes, and 53% were severely retarded and placed in autistic/retarded classes. Limitations include the lack of randomization; the unlikeliness that a therapist or investigator could replicate the treatment program for the experimental group without prior extensive theoretical and supervised practical experience; concerns about the generalizability of the data to older autistic children; and many treatment variables are left unexplored, such as the effect of normal peers.

    Length of controlled postintervention follow-up: Not specified.

  • Eikeseth, S., Smith, T., Jahr, E., & Eldevik, S. (2002). Intensive behavioral treatment at school for 4- to 7-year-old children with autism: A 1-year comparison controlled study. Behavior Modification, 26(1), 49–68. https://doi.org/10.1177/0145445502026001004

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 25

    Population:

    • Age — 4–7 years
    • Race/Ethnicity — Not specified
    • Gender — Not specified
    • Status — Participants were children with autism.

    Location/Institution: Counties of Akershus and Vestfold, Norway

    Summary:

    The purpose of the study was to evaluate one year of intensive treatment for children with autism. Participants were assigned to either behavioral treatment [now called Lovaas Model of Applied Behavior Analysis] or eclectic treatment. The two treatment groups received similar amounts of treatment (Mean=28.52 hours per week at the child’s school). Measures utilized include the Wechsler Preschool and Primary Scale of Intelligence–Revised, (WPPSI-R) or the Wechsler Intelligence Scale for Children–Revised (WISC-R), the Merrill-Palmer Scale of Mental Tests, the Reynell Developmental Language Scales, and the Vineland Adaptive Behavior Scales. Results indicate that children in the behavioral treatment group made significantly larger gains on standardized tests than children in the eclectic treatment group. Results also suggest that some 4- to 7-year-olds may make large gains with intensive behavioral treatment, that such treatment can be successfully implemented in school settings, and that specific aspects of behavioral treatment (not just its intensity) may account for favorable outcomes. Limitations include the lack of randomization, lack of follow-up, small sample size, measures that focused more on cognitive than social development, and lower treatment intensity than has been recommended by the developers of the behavioral treatment model used in the study.

    Length of controlled postintervention follow-up: None.

  • Sallows, G. O., & Graupner, T. D. (2005). Intensive behavioral treatment for children with autism: Four-year outcome and predictors. American Journal on Mental Retardation, 110(6), 417–438. https://psycnet.apa.org/record/2005-14953-001

    Type of Study: Randomized controlled trial

    Number of participants: 24

    Population:

    • Age — 24–42 months
    • Race/Ethnicity — Not specified
    • Gender — 19 Male and 5 Female
    • Status — Participants were recruited through local birth to three (special education) programs.

    Location/Institution: Wisconsin

    Summary:

    The purpose of the study was to replicate the parameters of the early intensive behavioral treatment developed at UCLA [now called Lovaas Model of Applied Behavior Analysis]. Participants were randomly assigned to a clinic-directed group (Lovaas) or to a parent-directed group that received intensive hours but less supervision. Measures utilized include the Mental Development Index, the Bayley Scales of Infant Development, Second Edition, the Merrill-Palmer Scale of Mental Tests, Reynell Developmental Language Scales, the Vineland Adaptive Behavior Scales, the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI), the Wechsler Intelligence Scale for Children (WISC-III), the Leiter-R, the Merrill-Palmer Clinical Evaluation of Language Fundamentals, Third Edition (CELF III), the Personality Inventory for Children, the Child Behavior Checklist, the Woodcock-Johnson III Tests of Achievement, and the Early Learning Measure. Results indicate that the outcomes after 4 years of treatment, including cognitive, language, adaptive, social, and academic measures, were similar for both groups. After combining groups, it was found that 48% of all children showed rapid learning, achieved average posttreatment scores, and at age 7, were succeeding in regular education classrooms. Treatment outcome was best predicted by pretreatment imitation, language, and social responsiveness. Limitations include the small sample size, lack of follow up, and concerns about generalizability due to gender.

    Length of controlled postintervention follow-up: None.

  • Cohen, H., Amerine-Dickens, M., & Smith, T. (2006). Early intensive behavioral treatment: Replication of the UCLA model in a community setting. Journal of Developmental & Behavioral Pediatrics, 27(2), S145–S155. https://10.1097/00004703-200604002-00013

    Type of Study: Pretest–posttest study with a nonequivalent control group (Quasi-experimental)

    Number of participants: 42

    Population:

    • Age — 18–42 months
    • Race/Ethnicity — Not specified
    • Gender — 4:1 Male to Female
    • Status — Participants were children with a primary diagnosis of autistic disorder or Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS).

    Location/Institution: Valley Mountain Regional Center; Stockton, CA and the child’s Special Education Local Planning Area (SELPA) of residence

    Summary:

    The purpose of the study was to compare two groups: (1) the early intensive behavioral treatment (EIBT) group [now called Lovaas Model of Applied Behavior Analysis] and (2) special education classes at local public schools. Participants were assigned to either the EIBT group or to a comparison group that received community services that their family selected from the Matrix of Educational Options. This matrix delineated the service agencies in the child’s area of residence and their eligibility criteria, along with the roles and responsibilities of parents, service providers, and funding agencies in implementing interventions. Measures utilized include the Autism Diagnostic Interview-Revised, the Bayley Scales of Infant Development-Revised (BSID-R), the Wechsler Preschool and Primary Scales of Intelligence, the Reynell Developmental Language Scales, the Merrill-Palmer Scale of Mental Tests, and the Vineland Adaptive Behavior Scales. Results indicate that with treatment, the EIBT group obtained significantly higher IQ and adaptive behavior scores than did the comparison group. No difference between groups was found in either language comprehension or nonverbal skills. Six of the 21 EIBT children were fully included in regular education without assistance at Year 3, and 11 others were included with support; in contrast, only 1 child from the comparison group was placed primarily in regular education. Limitations include that the EIBT group had more children with autism and fewer with PDD-NOS than did the comparison group, the comparison group received such diverse interventions that a measure of treatment fidelity could not be applied, the nonrandomization of participants, the small sample size, and the lack of follow-up.

    Length of controlled postintervention follow-up: None.

Additional References

  • Lovaas, O. I. (2003). Teaching individuals with developmental delays: Basic intervention techniques. Pro-ed.

Additional References

  • Lovaas, O. I. (2003). Teaching individuals with developmental delays: Basic intervention techniques. Pro-ed.

Date CEBC Staff Last Reviewed Research: November 2023

Date Program's Staff Last Reviewed Content: November -0001

Date Originally Loaded onto CEBC: June 2021