2017
DOI: 10.1016/j.beth.2016.08.002
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Intervention Effectiveness of The Incredible Years: New Insights Into Sociodemographic and Intervention-Based Moderators

Abstract: We tested the effectiveness of the preventive behavioral parent training (BPT) program, The Incredible Years (IY), and the independent effects of previously suggested sociodemographic and intervention-based moderator variables (i.e., initial severity of externalizing problem behavior, child gender, social economic status, family composition, and number of sessions parents attended), in a large-scale randomized controlled trial. Questionnaire and observation data from 387 parents and children ages 4-8 years (M=… Show more

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Cited by 67 publications
(76 citation statements)
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“…It is also notable that evidence of genetic moderation of intervention efficacy only emerged in child behavior reported by parents and not in case of observed externalizing behavior. This is consistent with the overall intervention effect for this sample (see Weeland, Chhangur et al., ). It seems plausible that the null G × I findings reported here for observed behavior could be due to the limited sampling period (i.e., 20 min) and highly structured observation context.…”
Section: Discussionsupporting
confidence: 89%
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“…It is also notable that evidence of genetic moderation of intervention efficacy only emerged in child behavior reported by parents and not in case of observed externalizing behavior. This is consistent with the overall intervention effect for this sample (see Weeland, Chhangur et al., ). It seems plausible that the null G × I findings reported here for observed behavior could be due to the limited sampling period (i.e., 20 min) and highly structured observation context.…”
Section: Discussionsupporting
confidence: 89%
“…Although the overall effects of the IY parent program (on boys and girls together) were more pronounced at the immediate posttest relative to the delayed follow‐up (see Weeland, Chhangur et al., ), inspection of Figures and makes clear that, in the case of the more genetically susceptible boys, treatment effects were not especially evident immediately after the intervention but became so by about 4 months later. This observation suggests that it may take time, in the case of more genetically susceptible boys, for increases in positive parenting induced by the IY intervention to become consolidated and thus influence child behavior.…”
Section: Discussionmentioning
confidence: 99%
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