Childhood Traumatic Questionnaire [25]

A 28-item self-report questionnaire validated for clinical and non-clinical populations, which has evinced high internal reliability and good construct validity [25]. Individuals are asked to indicate on a 5-point Likert scale whether and how often they experienced emotional, physical or sexual abuse and emotional or physical neglect in their childhood. In Study 1, Cronbach’s α for each subscale was = .81, 89, 95, 95 and .71, respectively. In Study 2 Cronbach’s α = .90, .71, .84, .89 and .95.

Across both studies, 22 participants (2%) had one missing item which was replaced by the subscale mean response items. Four (0.1%) participants had two missing items which were replaced by the subscale mean response items. One participant in Study 2 skipped more than four items and as such was excluded from analysis of this measure.