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Study Detail

Bernard, K., Dozier, M., Bick, J., Lewis-Morrarty, E., Lindhiem, O., & & Carlson, E. (2012). Enhancing attachment organization among maltreated children: Results of a randomized clinical trial. Child Development, 83(2), 623–636.

Program(s) Reviewed: ABC

Study Screening Details

Screening DecisionScreening Conclusion
Study Passes ScreensEligible for Review

Study Design Details

RatingDesignAttritionBaseline EquivalenceReassignmentConfounding Factors
ModerateRandomized controlled trialHighEstablished on race/ethnicity and SES; outcome(s) not feasible to assess at baselineNoneNone

Information on baseline equivalence for race/ethnicity and SES, attrition, and effect size and significance was based on correspondence with the author.

Study Characteristics

Study Participants Parents/caregivers of children younger than 2 with protective services involvement were randomly assigned to the treatment and comparison groups. If the parent or caregiver had two children, both were placed in the parent/caregiver's assigned group. Most of the parents belonged to a minority racial/ethnic group (80 percent), were living in poverty (80 percent), and had less than a high school education (88 percent). 58 percent of the children were male, and 93 percent belonged to minority racial/ethnic groups.
Setting The study was conducted in a large city in the Mid-Atlantic.
Home Visiting Services The intervention, Attachment and Biobehavioral Catch-Up (ABC), consisted of 10 hour-long sessions conducted weekly in participants' homes with parents and their children.
Comparison Condition Comparison families received Developmental Education for Families (DEF) in home visits that were the same duration (10 hour-long sessions) and frequency (weekly) as ABC. DEF was designed to enhance cognitive and linguistic development.
Staff Characteristics and Training Parent trainers who administered the programs were hired based on experience with children and strong interpersonal skills. The parent trainers conducted program sessions with parents according to a structured training manual.
Funding Source NIMH grants R01 MH052135, R01 MH074374, and R01 MH084135
Author Affiliation When the research was conducted, the authors were affiliated with the University of Delaware and the University of Minnesota.

Study Registration Identifier: NCT02093052. Study registration was assessed by HomVEE beginning with the 2014 review.


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