Initial reliability and validity of the childhood trauma interview: a new multidimensional measure of childhood interpersonal trauma

TLDR

The Childhood Trauma Interview is introduced as a brief, comprehensive tool for retrospective assessment of childhood interpersonal trauma, with initial evidence supporting its reliability and validity. The instrument was administered to 220 drug‑ or alcohol‑dependent patients alongside the Childhood Trauma Questionnaire; convergent and discriminant validity were examined by comparing analogous and non‑analogous trauma scales, and interrater reliability was high, with 63 % of dimensions achieving intraclass correlations above 0.90. Principal‑components analysis revealed six factors—separations and losses, physical neglect, emotional abuse or assault, physical abuse or assault, witnessing violence, and sexual abuse or assault—that accounted for 74 % of the variance, confirming construct validity and showing consistently higher convergent than discriminant correlations.

Abstract

The Childhood Trauma Interview, a new instrument for brief and comprehensive retrospective assessment of childhood interpersonal trauma, is presented with initial evidence of its reliability and validity.Drug- or alcohol-dependent patients (N = 220) were given the Childhood Trauma Interview and a questionnaire measure of child abuse, the Childhood Trauma Questionnaire. Convergent and discriminant validity for the Childhood Trauma Interview were tested by comparing correlations between analogous and nonanalogous trauma scales to those of the Childhood Trauma Questionnaire.Interrater reliability for the majority of trauma dimensions measured by the Childhood Trauma Interview was very high (63% had intraclass correlations above 0.90). Principal-components analysis yielded six rotated factors that accounted for 74% of the variance among scores: separations and losses, physical neglect, emotional abuse or assault, physical abuse or assault, witnessing violence, and sexual abuse or assault. Since these six factors exactly represented the areas that the interview was designed to assess, the construct validity of the Childhood Trauma Interview was supported. Without exception, convergent correlations were significantly higher than discriminant correlations, and convergence was improved when multidimensional variables from the Childhood Trauma Interview and their interactions were regressed onto Childhood Trauma Questionnaire scores.These initial findings suggest that the Childhood Trauma Interview is a reliable and valid method for brief assessment of multiple dimensions of six types of childhood interpersonal trauma.