RT journal article T1 Development and Validation of the Psychotherapeutic Effectiveness Attribution Questionnaire (PEAQ-12) in a Spanish Population A1 Romero Moreno, Antonio Francisco A1 Paramio Leiva, Alberto A1 Cruces Montes, Serafín Jesús A1 Zayas García, Antonio A1 Gómez Carmona, Diego A1 Merchán Clavellino, Ana A2 Marketing y Comunicación A2 Psicología K1 attribution K1 psychotherapist K1 scale K1 validation K1 development AB In recent decades, the study of psychotherapy effectiveness has been one of the pillars of clinical research because of its implication for therapeutic cure. However, although many studies have focused their interest on the patient's perception, there are no instruments oriented to the study of psychotherapists' attributions of effectiveness: to what factors psychotherapists attribute responsibility for the cure of the therapies they provide. The present study aimed to develop and validate an instrument for assessing the attribution of the effectiveness of psychotherapy in a population of 69 psychotherapists of different theoretical orientations. After an initial process of inter-judge content validation, 12 items were selected for validation in the targeted population, adequately fulfilling the quality requirements in the validity-reliability tests, and grouped into four factors after principal component analysis. These factors were as follows: (1) therapeutic alliance enhancers; (2) psychotherapist emotional characteristics; (3) therapy-specific variables; and (4) facilitators of patient engagement with therapy. This four-factor structure also showed a good fit for the fit indices checked in confirmatory factor analysis. In summary, we can conclude that the Psychotherapeutic Effectiveness Attribution Questionnaire (PEAQ-12) developed in our research can be helpful if tested on a larger number of individuals. The results can be replicated in other populations of psychotherapists PB MDPI SN 1660-4601 YR 2021 FD 2021-10 LK http://hdl.handle.net/10498/27234 UL http://hdl.handle.net/10498/27234 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026