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Study Detail

Yarger, H. A. (2015). Investigating trajectories of change in attachment and biobehavioral catch-up among high-risk mothers: A randomized clinical trial. ProQuest Dissertations and Theses, 1596912.

Program(s) Reviewed: ABC

Study Screening Details

Screening DecisionScreening Conclusion
Study Passes ScreensEligible for Review

Study Design Details

RatingDesignAttritionBaseline EquivalenceReassignmentConfounding Factors
HighRandomized controlled trialLowEstablished on race; established on SES; established on outcome measures assessable at baselineNoneNone

Study Characteristics

Study Participants The study is a randomized controlled trial. The Division of Family Services in Delaware referred mothers who had an unsubstantiated allegation of child neglect to participate in the study. After eligible mothers consented to participate, researchers randomly assigned 13 mothers to the Attachment and Biobehavioral Catch-Up (ABC) condition and 11 to the Developmental Education for Families (DEF) (control) condition. Based on the screening criteria, all mothers had children ages 6 to 20 months old and a household income less than $35,000. Most mothers identified as African American or European American.
Setting Delaware
Home Visiting Services ABC is an intervention designed to teach parents nurturing, sensitive, and nonfrightening ways of interacting with their children. The intervention was implemented across 10 weekly sessions in parents' homes with a parent coach interacting each week with the parent and child. Parents are also assigned homework each week to reinforce the skills taught during the session.
Comparison Condition DEF is another home-based intervention. Like ABC, it is also a manualized treatment conducted over 10 sessions with a parent coach. However, its focus is on improving children's gross and fine motor, cognitive, and language skills.
Staff Characteristics and Training The characteristics and training of the parent coaches are not described.
Funding Source Not reported.
Author Affiliation Not reported.

Study Registration Identifier: None found. Study registration was assessed by HomVEE beginning with the 2014 review.


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