Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients

Hengartner, Michael Pascal; Yamanaka-Altenstein, Misa

doi:10.21256/zhaw-1580

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1580

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients
Authors:	Hengartner, Michael Pascal Yamanaka-Altenstein, Misa
DOI:	10.21256/zhaw-1580 10.3389/fpsyt.2017.00009
Published in:	Frontiers in Psychiatry
Volume(Issue):	8
Issue:	9
Issue Date:	2017
Publisher / Ed. Institution:	Frontiers Research Foundation
ISSN:	1664-0640
Language:	English
Subject (DDC):	616.89: Mental disorders, clinical psychology and psychiatry
Abstract:	The role of personality trait variation in psychopathology and its influence on the outcome of psychotherapy is a burgeoning field. However, thus far most findings were based on controlled clinical trials that may only poorly represent real-world clinical settings due to highly selective samples mostly restricted to patients with major depression undergoing antidepressive medication. Focusing on personality and psychopathology in a representative naturalistic sample of psychotherapy patients is therefore worthwhile. Moreover, up to date hardly any confirmatory research has been conducted in this field. Strictly confirmatory research implies two major requirements: firstly, specific hypotheses, including expected effect sizes and statistical approaches to data analysis, must be detailed prior to inspection of the data, and secondly, corresponding protocols have to be published online and freely available. Here, we introduce a longitudinal naturalistic study aimed at examining, firstly, the prospective impact of baseline personality traits on the outcome of psychotherapy over a 6-month observation period; secondly, the stability and change in personality traits over time; thirdly, the association between longitudinal change in psychopathology and personality; fourthly, the agreement between self-reports and informant rating of personality; and fifthly, the predictive validity of personality self-reports compared to corresponding informant ratings. For it, we comprehensively state a priori hypotheses, predict the expected effect sizes and detail the statistical analyses that we intend to conduct to test these predictions. Such a stringent confirmatory design increases the transparency and objectivity of psychopathological research, which is necessary to reduce the rate of false-positive findings and to increase the yield of scientific research.
URI:	https://digitalcollection.zhaw.ch/handle/11475/2244
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	Applied Psychology
Organisational Unit:	Psychological Institute (PI)
Appears in collections:	Publikationen Angewandte Psychologie

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Hengartner, M. P., & Yamanaka-Altenstein, M. (2017). Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients. Frontiers in Psychiatry, 8(9). https://doi.org/10.21256/zhaw-1580

Hengartner, M.P. and Yamanaka-Altenstein, M. (2017) ‘Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients’, Frontiers in Psychiatry, 8(9). Available at: https://doi.org/10.21256/zhaw-1580.

M. P. Hengartner and M. Yamanaka-Altenstein, “Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients,” Frontiers in Psychiatry, vol. 8, no. 9, 2017, doi: 10.21256/zhaw-1580.

HENGARTNER, Michael Pascal und Misa YAMANAKA-ALTENSTEIN, 2017. Personality, psychopathology, and psychotherapy : a pre-specified analysis protocol for confirmatory research on personality-psychopathology associations in psychotherapy outpatients. Frontiers in Psychiatry. 2017. Bd. 8, Nr. 9. DOI 10.21256/zhaw-1580

Hengartner, Michael Pascal, and Misa Yamanaka-Altenstein. 2017. “Personality, Psychopathology, and Psychotherapy : A Pre-Specified Analysis Protocol for Confirmatory Research on Personality-Psychopathology Associations in Psychotherapy Outpatients.” Frontiers in Psychiatry 8 (9). https://doi.org/10.21256/zhaw-1580.

Hengartner, Michael Pascal, and Misa Yamanaka-Altenstein. “Personality, Psychopathology, and Psychotherapy : A Pre-Specified Analysis Protocol for Confirmatory Research on Personality-Psychopathology Associations in Psychotherapy Outpatients.” Frontiers in Psychiatry, vol. 8, no. 9, 2017, https://doi.org/10.21256/zhaw-1580.