Attachment and Biobehavioral Catch-Up–Infant (ABC-Infant)

MODEL
EFFECTIVENESS

Evidence-based model

MIECHV eligible

97
Manuscripts

Released in 1979 through 2024

13
Manuscripts

Impact studies rated high or moderate quality

Services intended at ages
0-6 months
7-11 months
12-23 months
Favorable results from well-designed research
Child development and school readiness
Child health
Positive parenting practices

Attachment and Biobehavioral Catch-Up—Infant (ABC-Infant) serves caregivers of infants ages 6 to 24 months. This includes caregivers of children who have experienced, or are at heightened risk for experiencing, early adverse childhood experiences such as abuse, neglect, disruptions in caregiving, housing instability, domestic violence, poverty, and/or parental mental health concerns or substance use. Parent coaches conduct 10 weekly home visits lasting about 60 minutes each. The model is designed to help caregivers (1) provide nurturing care, (2) follow children’s lead with delight, and (3) decrease behaviors that are frightening or overwhelming to children. Parent coaches provide immediate feedback (referred to as "in-the-moment" comments) on the caregiver’s interaction with the child to help the caregiver notice and respond to the target behaviors. During visits, the parent coach and caregiver watch videos of the caregiver interacting with the child. The parent coach highlights the caregiver’s strengths, celebrates changes in behavior, and identifies areas for improvement.

Where to find out more

Effectiveness

This model meets criteria established by the U.S. Department of Health and Human Services for an evidence-based home visiting model.

Does not meet criteria for an evidence-based home visiting model for Indigenous peoples and communities.

Extent of Evidence

For more information about manuscripts, search the research database.

For more information on the criteria used to rate research, please see details of HomVEEʼs methods and standards.

97
Manuscripts

Released in 1979 through 2024

44
Manuscripts

Eligible for review

13
Manuscripts

Impact studies rated high or moderate quality

Summary of Findings

To see details on each manuscript HomVEE reviewed in well-designed research, click on the manuscript counts in the table.

Favorable:
A finding showing a statistically significant impact on an outcome measure in a direction that is beneficial for children and parents.

No effect:
Findings are not statistically significant.

Unfavorable:
A finding showing a statistically significant impact on an outcome measure in a direction that may indicate potential harm to children and/or parents.

Ambiguous findings are excluded from this table. An ambiguous finding is a statistically significant impact on an outcome measure in a direction that is not clearly beneficial for or potentially harmful to children and/or parents.

Outcomes Manuscripts Favorable Findings No Effects Findings Unfavorable Findings
Child Development and School Readiness View 7 Manuscripts 8 11 0
Child Health View 1 Manuscript 1 0 0
Family Economic Self-Sufficiency Not measured - - -
Linkages and Referrals Not measured - - -
Maternal Health View 1 Manuscript 0 3 0
Positive Parenting Practices View 9 Manuscripts 13 15 0
Reductions In Child Maltreatment Not measured - - -
Reductions in Juvenile Delinquency, Family Violence, and Crime Not measured - - -

Research Characteristics

Well-designed impact studies about this model included participants with the following characteristics. The evidence for effectiveness for the model may include additional studies that did not report this participant information.

Race/Ethnicity

The race and ethnicity categories may sum to more than 100 percent if Hispanic ethnicity was reported separately or respondents could select two or more race or ethnicity categories.

American Indian or Alaska Native
<1%
Asian
1%
Black or African American
55%
Hispanic or Latino
12%
White
23%
Some other race
2%
Two or more races
9%
Unknown
2%

Maternal Education

Less than a high school diploma
44%
High school diploma or GED
22%
Some college or Associate's degree
9%
Bachelor's degree or higher
22%
Unknown
5%

Other Characteristics

Data not available

Well-designed impact studies about this model were conducted in the following locations:

  • Delaware
  • New York
  • Pennsylvania

Implementation

In this section:

Overview

Theoretical approach, intended population, and targeted outcomes.

Support Availability

Service Delivery

Model services, adaptions and enhancements, model intensity and length.

Requirements

Staffing and organizational requirements.

Overview

Theoretical approach

Attachment and Biobehavioral Catch-Up—Infant (ABC-Infant) was developed in 1996 and is based on attachment theory and stress neurobiology. ABC-Infant was originally called the ABC Intervention. The developer renamed the model ABC-Infant after creating an adapted version of the model for toddlers called ABC-Early Childhood (linked below under "Related Models").

Intended population

ABC-Infant serves caregivers of infants ages 6 to 24 months, including caregivers of children who have experienced, or are at heightened risk for experiencing early adverse childhood experiences such as abuse, neglect, disruptions in caregiving, housing instability, domestic violence, poverty, and/or parental mental health concerns or substance use.

Intended outcomes

ABC-Infant aims to improve positive parenting practices by helping caregivers:

  • Provide nurturing care
  • Follow their children’s lead with delight
  • Avoid behaviors that are frightening or overwhelming to children

Highlights

Populations intended
Families with a history of child abuse or neglect, or interactions with child welfare services
Families with a history of substance use disorders or in need of substance use disorder treatment
Families with low-income
Families with pregnant women under age 21
Services intended at ages
0-6 months
7-11 months
12-23 months

Support Availability

Implementation support availability

ABC-Infant was developed by Mary Dozier, Ph.D., and the Infant Caregiver Project at the University of Delaware. National and international implementation support is available through the ABC Parenting Institute, which is led by Dr. Dozier.

The ABC Parenting Institute provides ongoing consultation, quality assurance, technical assistance, and program evaluation services as requested.

Highlights

Locations where model has been implemented
Within the U.S.
Internationally, outside the U.S.

Service Delivery

Model services

ABC-Infant is designed to be delivered by a parent coach in the family’s home or a residential facility, such as a homeless shelter. Parent coaches can also deliver the intervention virtually upon request by the family or if in-person services are not possible.

The curriculum is designed to outline the focus for each session.

  • Sessions 1 and 2 help caregivers provide nurturing care to their children.
  • Sessions 3 and 4 help caregivers learn to follow their children’s lead with delight.
  • Sessions 5 and 6 help caregivers notice and respond to their child’s signals and recognize and reduce their own overwhelming or frightening behaviors.
  • Sessions 7 and 8 help caregivers recognize how their previous experiences might make it challenging to nurture their child or follow their child’s lead and learn ways to override automatic responses.
  • Sessions 9 and 10 reinforce knowledge gained during previous sessions and provide more opportunities to practice these skills.

Throughout the home visiting session, the parent coach comments on the caregiver’s interactions to help the caregiver increase target behaviors, including using nurturing and calming behaviors and following the child’s lead with delight. Additionally, the caregiver is encouraged to notice and respond to the child’s signals to decrease overwhelming or frightening behaviors.

The parent coach and caregiver also watch video clips of the caregiver demonstrating ABC target behaviors to highlight their strengths and celebrate change over the course of the program.

Model intensity and length

Home visiting requirements 

ABC-Infant is delivered in weekly sessions lasting about 60 minutes each. 

Service duration 

ABC-Infant is a 10-week program. 

Additional requirements 

There are no additional requirements for ABC-Infant service delivery.

Tailored services and enhanced models

ABC can be used to serve infants younger than 6 months. ABC can be culturally adapted by maintaining the core components of the model but modifying the language, examples used, and certain activities. Any modifications must be approved by ABC Parenting Institute and/or developed in partnership with ABC Parenting Institute. For more information about cultural adaptations, please consult with the model developer.

Named Enhancements

ABC recognizes the following enhanced versions of the model: 

  • ABC-Newborn focuses on infants from prenatal or birth through 6 months of age. Pregnant parents can start ABC-Newborn before the birth of their baby with two prenatal sessions in the third trimester. However, prenatal sessions are not required for ABC-Newborn and sessions can begin after the baby is born. Its intended population is parents enrolled during pregnancy or the early postpartum period.

Implementation with Indigenous peoples and communities

In partnership with Dolores Bigfoot, Ph.D., ABC is developing guidelines for implementing ABC-Infant with American Indian communities. These guidelines have not yet been applied at community sites or with partners.

Highlights

Program is available in other language(s)
Chinese
German
Spanish
Other language
Maximum program duration
One to six months
Visit frequency
Weekly
Delivery method supported
Supports hybrid in-person and virtual service delivery

Requirements

Staffing requirements

Education and supervisory requirements 

Staff. ABC-Infant is implemented by parent coaches who conduct home visits. Parent coaches are supervised by clinical supervisors and fidelity supervisors who ensure adherence to ABC’s in-the-moment fidelity standards (described further under “Supervision” below). 

Education and experience. There are no education or experience requirements for the parent coaches. However, all prospective parent coaches must pass a screening process that involves a 30- to 60-minute video interview with ABC Parenting Institute staff. The purpose of the interview is to assess the prospective trainee’s openness to attachment theory, their ability to provide in-the-moment comments about caregiver-child behavior, and their agencies’ readiness for implementation. Parent coaches are considered trainees until they become certified following a six (or more)-month supervision period and assessment of their adherence and fidelity to the model. 

Supervision. The initial supervision period is typically six months but can be extended if the trainee is learning more than one ABC model. During the supervision period, parent coach trainees must participate in two ongoing virtual supervision meetings with the ABC Parenting Institute (or their local agency, if it has a trained and certified supervisor on staff). These meetings are explained below: 

  • General clinical supervision. A weekly one-hour meeting conducted in groups of two or three trainees with a supervisor; the meeting includes a review of videos from home visit sessions. Clinical supervision also focuses on understanding and explaining families’ current state and a plan for home visiting supports, caregiver progress, technical assistance related to program evaluation, and any other relevant clinical challenges (such as maternal depression or substance use issues).
  • “In-the-moment” commenting supervision. A 30-minute one-on-one meeting between a fidelity supervisor and trainee. Before each supervision meeting, the trainee and supervisor code the trainee’s use of commenting in a five-minute video-recorded segment from the trainee’s most recent ABC session. The goal of the supervision is to enhance comment quality and frequency by supporting trainees’ assessment of their own commenting. 

Ongoing supervision is recommended but not required after parent coaches complete the certification process. The ABC Parenting Institute can provide ongoing clinical or in-the-moment supervision for quality assurance. 

Training and professional development 

Pre-Service Training. The model requires parent coaches to participate in pre-service training. Parent coach trainees must attend a two-day in-person or three half-days of virtual pre-service training. The program development team offers the training virtually each month. 

Supervisor Training. Fidelity and clinical supervisors must be certified ABC parent coaches and participate in training provided by the ABC Parenting Institute. Fidelity supervisors must participate in eight to 10 weeks of training. Clinical supervisors must participate in six to 12 months of training. 

Ongoing Professional Development. ABC-Infant requires that, every two years, parent coaches view a webinar and complete a quiz that assesses adherence and fidelity to the model to be re-certified as an ABC-Infant parent coach. Supervisors participate in ongoing professional development.

Organizational requirements

There are currently no requirements about the type or characteristics of organizations that can implement ABC-Infant. The model is primarily implemented by agencies that conduct home visits with caregivers of children who have experienced, or are at heightened risk for experiencing, early adverse childhood experiences such as abuse, neglect, disruptions in caregiving, housing instability, domestic violence, poverty, and/or parental mental health concerns or substance use.

ABC-Infant requires parent coaches to adhere to ongoing fidelity guidelines. Please contact the model developer for additional information about these guidelines.

Highlights

Minimum education requirement
No education requirement
Professional certification required for home visitors
No

HomVEE requests input and feedback from the model developers on their profiles. The information in this implementation profile reflects feedback, if provided, from this model’s developer. HomVEE reserves the right to edit the profile for clarity and consistency. The description of the implementation of the model here may differ from how the model was implemented in the manuscripts reviewed to determine this model’s evidence of effectiveness. Model developers are encouraged to notify HomVEE of any changes to their contact information on this page.