Perseverative Thinking Questionnaire–Clinical Psychology Trainees (PTQ‑CPT): adaptation and initial validation

Adaptation of the PTQ to measure RNT focused on clinical practice (PTQ-CPT). After expert review, a 9-item version was obtained and administered to 412 students about to start practice. It showed excellent internal consistency (α = .93), unidimensional structure, and theoretical correlations with experiential avoidance and emotional symptoms. Useful for investigating RNT in clinical training.