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The adolescent psychotherapy Q-set (APQ): a validation study

Calderon, A; Schneider, C; Target, M; Midgley, N; (2017) The adolescent psychotherapy Q-set (APQ): a validation study. Journal of Infant, Child, and Adolescent Psychotherapy , 16 (1) pp. 106-120. 10.1080/15289168.2016.1255499. Green open access

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Abstract

This article reports the validation of the Adolescent Psychotherapy Q-set (APQ), a newly developed instrument, adapted from the well-established Psychotherapy Q-Set (PQS) and the Child Psychotherapy Q-set (CPQ). The APQ aims to describe the psychotherapy process in the treatment of adolescents in a form suitable for quantitative comparison and analysis. The validation was conducted with the ratings of 70 audio-recorded youth psychotherapy sessions from a range of therapists, patients, and treatment stages, using two therapeutic approaches (Short-Term Psychoanalytic Psychotherapy and Cognitive Behavioral Therapy). Data analysis included intraclass correlation coefficients, Q-factor analysis, nonparametric mean differences, and Pearson correlations. Results suggest that the APQ has good levels of interrater reliability, is able to identify differences and similarities of two therapeutic approaches, and good convergent and discriminant validity with a widely-used measure of therapist behaviors (the Comparative Psychotherapy Process Scale). The APQ reported good levels of validity and reliability. It is hoped that it will contribute to new ways of investigating the mechanisms of therapeutic change for those working with adolescents.

Type: Article
Title: The adolescent psychotherapy Q-set (APQ): a validation study
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/15289168.2016.1255499
Publisher version: http://dx.doi.org/10.1080/15289168.2016.1255499
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
URI: http://discovery.ucl.ac.uk/id/eprint/1540003
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