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. 2025 Jun 26:10.1007/s10566-025-09880-6.
doi: 10.1007/s10566-025-09880-6. Online ahead of print.

Secondary Youth-Level Mechanisms of Change in Parent Training for Anxious Youth

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Secondary Youth-Level Mechanisms of Change in Parent Training for Anxious Youth

Jacey L Anderberg et al. Child Youth Care Forum. .

Abstract

Background: Parent-focused treatments are a promising approach for addressing youth anxiety outside of traditional therapist-delivered modalities. Supportive Parenting for Anxious Childhood Emotions (SPACE) has preliminarily demonstrated efficacy for reducing family accommodation (FA), a key treatment outcome for youth anxiety.

Objective: Since the mechanisms of SPACE remain relatively understudied, we examined youth-reported distress tolerance (DT), anxiety sensitivity (AS), and negative automatic thoughts as candidate mechanisms of SPACE using data from a previously conducted clinical trial.

Methods: In a sample of N = 68 youth (M age = 10.2; 52% male; 62% White), we examined: (a) associations among candidate mechanisms and FA at baseline, (b) pre- to post-intervention change in candidate mechanisms, and (c) the association between pre- to post-intervention changes in candidate mechanisms and FA at post-intervention.

Results: Youth-reported DT, AS, and negative automatic thoughts were correlated with one another, but were not associated with parent-reported FA at baseline. These findings were inconsistent with youth-reported FA, which evidenced significant relations with DT and AS at baseline. Scores of candidate mechanisms slightly improved from pre- to post-intervention, with AS evidencing the most prominent reduction, although effect sizes were small. Finally, only salutary pre- to post-intervention changes in DT and social-based negative automatic thoughts were associated with parent-reported FA at post-intervention, suggesting the potential relevance of these variables as relevant mechanisms in SPACE.

Conclusions: While our results do not permit definitive conclusions concerning the underlying youth-level mechanisms of SPACE, our findings may inform further refinement of parent-led interventions for anxious youth.

Keywords: Supportive Parenting for Anxious Childhood Emotions; anxiety sensitivity; anxiety severity; distress tolerance; family accommodation; negative automatic thoughts.

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