Validity and reliability of the Japanese version of the Therapeutic Factors Inventory–19 : A study of family peer education self-help groups

Kageyama, Masako; Nakamura, Yukako; Kobayashi, Sayaka et al.

Japan Journal of Nursing Science, 2015, 13(1), 135-146

Number of Access:632（2025-11-01 23:55 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/75871

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Title
Validity and reliability of the Japanese version of the Therapeutic Factors Inventory–19 : A study of family peer education self-help groups
Creator
NRID
1000080646464 1000080646464
ORCID
0000-0002-1221-7763 0000-0002-1221-7763
researchmap permalink
kagemasako kagemasako
Scopus Author ID
36475102900 36475102900
CreatorName
Kageyama, Masako
NRID
1000060614485 1000060614485
CreatorName
Nakamura, Yukako
NRID
1000040439807 1000040439807
CreatorName
Kobayashi, Sayaka
NRID
1000080320670 1000080320670
CreatorName
Yokoyama, Keiko
Subject
group processes
group psychotherapy
process assessment
reliability and validity
self-help groups
Description
This is the peer reviewed version of the following article: Kageyama, M., Nakamura, Y., Kobayashi, S. and Yokoyama, K. (2016), Therapeutic Factors Inventory–19. Japan Journal of Nursing Science, 13: 135-146. doi:10.1111/jjns.12098, which has been published in final form at https://doi.org/10.1111/jjns.12098. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Abstract
Aim: Therapeutic factors are crucial mechanisms that promote change in self-help group members. Measuring therapeutic factors may improve practitioners’ skills for assessment in whole-group contexts. The present authors, therefore, examined the validity and reliability of a Japanese version of the Therapeutic Factors Inventory–19. Methods: The Therapeutic Factors Inventory–19 was examined using a self-report questionnaire completed by members of 38 family peer education self-help groups. The instrument measured the following four factors: instillation of hope, secure emotional expression, awareness of relational impact, and social learning. Results: Participants were 246 group members. Test–retest reliability was analyzed using data from 46 participants. Confirmatory factor analysis showed a goodness of fit of 0.85 and a root mean square error of approximation of 0.088. Multitrait scaling analyses showed that items for instillation of hope and secure emotional expression factors correlated higher with their own factors than other factors. Each factor and the total average of the 19 items were significantly correlated with the Group Benefit Scale and Client Satisfaction Questionnaire. When level of interaction with other members was higher, subjects perceived a stronger presence of therapeutic factors. The intraclass correlation coefficients of each factor at a week interval were 0.848–0.915. Cronbach’s alpha of each factor and all items ranged 0.767–0.960. Conclusion: In the case of family peer education self-help groups, there is acceptable validity and reliability for the average score of all items, and for the instillation of hope and secure emotional expression factors. However, more work is needed to increase the generalizability.
Publisher
Japan Academy of Nursing Science
Source Title
Japan Journal of Nursing Science
Volume (Issue)
13(1)
Page
135-146
Date of Issued
2015-12-02
Language
English
Handle URL
https://hdl.handle.net/11094/75871
PISSN
17427932
NCID
AA12141366
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1111/jjns.12098
Relation.isIdenticalTo
PMID
26630352
Access Rights
open access
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article