Japanese Journal of Behavioral and Cognitive Therapies
Online ISSN : 2433-9040
Print ISSN : 2433-9075
Current issue
Displaying 1-5 of 5 articles from this issue
Original Article
  • Satoshi Yamazaki, Masao Tsuchiya, Yoshihiko Kunisato
    2026Volume 52Issue 1 Pages 1-13
    Published: January 31, 2026
    Released on J-STAGE: July 08, 2026
    Advance online publication: April 03, 2026
    JOURNAL FREE ACCESS

    The Personalized Psychological Flexibility Index (PPFI) (Kashdan et al., 2020) is a questionnaire that can be assessed considering psychological flexibility, focusing on reactions when pursuing goals. We developed the Japanese version of the PPFI (PPFI-J), because it is useful in domestic research and clinical practice. The survey was conducted on the general adults who used Japanese as a native language (effective respondents: 554, average age: 39.49 years, standard deviation: 9.87), and the re-survey was conducted at 1-month intervals (effective respondents: 140, average age: 40.56 years, standard deviation: 9.99). The original factor structure did not conform to the criteria of the suitability index in confirmatory factor analysis. Consequently, we conducted an exploratory factor analysis and adopted a bi-factor model. The construct validity and reliability of the scale were found to be good. Consequently, the validity and reliability of PPFI-J were evaluated.

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Brief Note
  • Tomoya Ito, Akiko Ogata
    2026Volume 52Issue 1 Pages 15-25
    Published: January 31, 2026
    Released on J-STAGE: July 08, 2026
    Advance online publication: March 26, 2026
    JOURNAL FREE ACCESS

    In this study, a new scale was developed to assess the symptoms of deipnophobia and to facilitate empirical research. The scale comprises 21 items grouped into four factors: “avoidance of dining together situations,” “physiological responses,” “avoidance behavior during dining together,” and “emotions.” High reliability was confirmed for the scale as a whole and for its sub-factors. Construct validity was supported by moderate positive correlations with social and trait anxiety, suggesting that the scale could measure anxiety traits. However, a weak correlation with fear of vomiting was established, suggesting that further investigation of the relationship between deipnophobia and fear of vomiting is required. A cut-off point based on subjective fear was established, suggesting its potential as a screening tool. As no existing measures for deipnophobia currently exist in Japan or abroad, the newly developed Deipnophobia Scale will provide a valuable foundation for future research and clinical practice.

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Practical Researches
  • Atsushi Seguchi
    2026Volume 52Issue 1 Pages 27-36
    Published: January 31, 2026
    Released on J-STAGE: July 08, 2026
    Advance online publication: March 30, 2026
    JOURNAL FREE ACCESS

    In this case study, a client with social anxiety who had difficulty writing in public because of hand tremors was engaged in exposure. During this intervention, the client was asked to intentionally tremble his hands and write distorted letters in public. The effectiveness of the intervention was evaluated by measuring the client’s writing behavior through direct observation during sessions and self-recording in daily situations. Data revealed an improvement in the client’s writing behavior. The results indicate the effectiveness of exposure on the writing behavior of a client with difficulty writing in public. The effectiveness of the intervention and usefulness of measuring writing behavior through direct observation during the sessions were discussed.

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  • Daichi Hirata, Naoki Yoneyama, Yume Mishiro
    2026Volume 52Issue 1 Pages 37-47
    Published: January 31, 2026
    Released on J-STAGE: July 08, 2026
    Advance online publication: April 04, 2026
    JOURNAL FREE ACCESS

    This study examined the effects of behavioral coaching on shooting form and the number of successful shots in high school water polo using a mixed design that incorporated multiple baselines across participants and an alternating treatment design. The participants were three female athletes from a high school water polo team. During the intervention phase, high scores elicited verbal praise on a shooting form evaluation checklist, whereas low scores elicited corrective actions in three stages. In the first stage, verbal instructions on and modeling of proper execution methods were provided. If low scores persisted for more than two days, video feedback was introduced in the second stage, where athletes watched videos while receiving verbal instructions and modeling. If low scores persisted for another two days, the third stage involved providing physical prompts in addition to video feedback, verbal instructions, and modeling. The results indicated that behavioral coaching was effective for improving shooting form.

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  • Jumpei Ono, Aya Yamamoto
    2026Volume 52Issue 1 Pages 49-58
    Published: January 31, 2026
    Released on J-STAGE: July 08, 2026
    Advance online publication: April 04, 2026
    JOURNAL FREE ACCESS

    When supporting individuals with intellectual disabilities and autism spectrum disorder, it is often necessary to address inappropriate learning regarding excretion, in addition to the excretion support needs that arise due to functional limitations. In these circumstances, places with limited staff, such as welfare facilities, require intervention methods that support providers can easily carry out with minimal strain. The purpose of this study was to report on and discuss a case in which the Glasberg and LaRue (2015) Functional Behavioral Assessment package, designed to be implementable even by those not specializing in behavioral analysis, was applied to an individual with autism spectrum disorder and intellectual disabilities in a welfare facility, who, upon urination, would proceed to lick or touch said urine. This maladaptive urine-related behavior was reduced as a result of using this package —a method considered to cause little strain for the welfare facility. However, the complexity of measuring target behaviors and conducting interviews, as well as the need for consultations, were considered issues.

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