Please use this identifier to cite or link to this item:
http://hdl.handle.net/10071/11380
Author(s): | Elliott, R. Wagner, J. Sales, C. Rodgers, B. Alves, P. Café, M. |
Date: | 2016 |
Title: | Psychometrics of the personal questionnaire: a client-generated outcome measure |
Volume: | 28 |
Number: | 3 |
Pages: | 263 - 278 |
ISSN: | 1040-3590 |
DOI (Digital Object Identifier): | 10.1037/pas0000174 |
Keywords: | Individualized Measurement Outcome Psychometrics Psychotherapy |
Abstract: | We present a range of evidence for the reliability and validity of data generated by the Personal Questionnaire (PQ), a client-generated individualized outcome measure, using 5 data sets from 3 countries. Overall pretherapy mean internal consistency (alpha) across clients was .80, and within-client alphas averaged .77; clients typically had 1 or 2 items that did not vary with the other items. Analyses of temporal structure indicated high levels of between-clients variance (58%), moderate pretherapy test-retest correlation (r = .57), and high session-to-session Lag-1 autocorrelation (. 82). Scores on the PQ provided clear evidence of convergence with a range of outcome measures (within-client r = .41). Mean pre-post effects were large (d = 1.25). The results support a revised caseness cutoff of 3.25 and a reliable change index interval of 1.67. We conclude that PQ data meet criteria for evidence-based, norm-referenced measurement of client psychological distress for supporting psychotherapy practice and research. |
Peerreviewed: | yes |
Access type: | Open Access |
Appears in Collections: | CIS-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Files in This Item:
File | Description | Size | Format | |
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Elliott_et_al_PQ_Cross_analysis_in_press_post_print.pdf | Pós-print | 737,81 kB | Adobe PDF | View/Open |
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