Service Delivery

Predicting outcome in parent-child interaction therapy: success and attrition.

Werba et al. (2006) · Behavior modification 2006
★ The Verdict

Mom stress and parent commands, not child misbehavior, decide PCIT success once families walk through the door.

✓ Read this if BCBAs running or supervising PCIT in clinics with long wait lists.
✗ Skip if Practitioners who only work with school-age verbal learners and never use parent coaching.

01Research in Context

01

What this study did

The team looked at families who started Parent-Child Interaction Therapy. They wanted to know who would finish and who would improve.

They tracked wait-list placement, mom’s age, stress level, and parent-child play clips. No child severity scores were used.

02

What they found

Wait-list time and younger moms predicted dropping out before session one.

Among families who stayed, high mom stress and more harsh commands during play predicted poor results. Child behavior scores did not.

03

How this fits with other research

Capio et al. (2013) extends the same idea: when families carry three or more risks—like job loss, no partner, or low income—dropout jumps and gains shrink.

Cerasuolo et al. (2022) sounds contradictory at first. Their review says child baseline skills can shape ABA outcomes. The gap is method: Cerasuolo pooled many ABA studies, while E et al. looked only inside PCIT once treatment began. Parent variables still rule within one PCIT course.

Wahler (1980) saw parent-training gains fade after a year unless moms had daily friend contact. Both papers agree: parent-side factors, not child labels, keep change alive.

04

Why it matters

Stop guessing that severe tantrums mean a poor PCIT prognosis. Instead, screen mom stress and coach parent play skills early. Add extra check-ins for younger moms and families stuck on a wait list. These quick steps can keep more families in the room and speed child gains.

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Score parent stress at intake; if it is high, add a five-minute stress-reduction warm-up before each coaching segment.

02At a glance

Intervention
parent training
Design
quasi experimental
Sample size
99
Population
mixed clinical
Finding
not reported

03Original abstract

This study explored predictors of treatment response and attrition in Parent-Child Interaction Therapy (PCIT). Participants were 99 families of 3- to 6-year-old children with disruptive behavior disorders. Multiple logistic regression was used to identify those pretreatment child, family, and accessibility factors that were predictive of success or attrition. For all study participants, waitlist group assignment and maternal age were the significant predictors of outcome. For treatment participants (study participants excluding those who dropped out after the initial evaluation but before treatment began), only maternal ratings of parenting stress and maternal inappropriate behavior during parent-child interactions were significant predictors of treatment outcome. These results suggest that for treatment studies of disruptive preschoolers, the benefits of using a waitlist control group may be outweighed by the disproportionate number of dropouts from this group. Once families begin PCIT, however, parent-related variables become salient in predicting treatment outcome.

Behavior modification, 2006 · doi:10.1177/0145445504272977