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Reliability and Validity of the Japanese Version of the Short Form of the Expanded Version of the Posttraumatic Growth Inventory (PTGI-X-SF-J): A Cross-Sectional Study

Author

Listed:
  • Rei Oshiro

    (Department of Family Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
    Department of Nursing, School of Nursing, Hyogo Medical University, Kobe 650-8530, Japan)

  • Takafumi Soejima

    (Department of Family Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
    Department of Child Health Nursing, Graduate School of Health Sciences, Kobe University, Kobe 654-0142, Japan)

  • Sachiko Kita

    (Department of Family Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
    Department of Health Policy, National Center for Child Health and Development, Tokyo 157-8535, Japan)

  • Kayla Benson

    (Department of Psychology, Oakland University, Rochester, MI 48309-4482, USA)

  • Satoshi Kibi

    (Department of Family Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan)

  • Koichi Hiraki

    (Department of Social Welfare, Chinzeigakuin University, Nagasaki 854-0082, Japan)

  • Kiyoko Kamibeppu

    (Department of Family Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
    Graduate Programs in Family Nursing, International University of Health and Welfare, Tokyo 107-8402, Japan)

  • Kanako Taku

    (Department of Psychology, Oakland University, Rochester, MI 48309-4482, USA)

Abstract

A Japanese version of the short form of the expanded Posttraumatic Growth Inventory (PTGI-X-SF-J) was developed in this study, as the extended version captures broader, more diverse personal growth perspectives, such as existential spiritual growth. We collected cross-sectional data from 408 (first sample) and 284 (second sample) Japanese university students using the expanded version of the Posttraumatic Growth Inventory (PTGI-X-J). Exploratory factor analysis (EFA) was performed with the first sample and confirmatory factor analysis (CFA) with the second; reliability and validity were examined. The short-form version resulting from the EFA and CFA comprised 10 items and five factors. Cronbach’s alpha for the PTGI-X-SF-J total and subscale scores ranged from 0.671 to 0.875. The intraclass correlation coefficient for the total and subscale scores between the PTGI-X-J and PTGI-X-SF-J ranged from 0.699 to 0.821. Regarding external validity, no significant correlation was found between posttraumatic growth and posttraumatic stress disorder checklists. Due to its brevity, the PTGI-X-SF-J can help assess diverse spiritual and existential personal growth experiences among clients, patients, and trauma survivors while reducing physical and psychological burdens.

Suggested Citation

  • Rei Oshiro & Takafumi Soejima & Sachiko Kita & Kayla Benson & Satoshi Kibi & Koichi Hiraki & Kiyoko Kamibeppu & Kanako Taku, 2023. "Reliability and Validity of the Japanese Version of the Short Form of the Expanded Version of the Posttraumatic Growth Inventory (PTGI-X-SF-J): A Cross-Sectional Study," IJERPH, MDPI, vol. 20(11), pages 1-15, May.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:11:p:5965-:d:1157038
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