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한국판 편집사고 척도 개정판(R-GPTS)의 타당화

Korean Version of Validation of the Revised Green et al. Paranoid Thoughts Scale

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초록

본 연구는 편집사고 척도 개정판(The Revised Green et al., Paranoid Thoughts Scale: R-GPTS)을 타당화하였다. 이를 위해 대학생 302명을 대상으로 탐색적 및 확인적 요인분석을 실시하였고, 정신과 환자 집단 79명을 포함하여 신뢰도 및 타당도를 검증하였다. 그 결과 편집사고 척도 개정판은 원척도와 동일하게 관계 사고 및 피해 사고의 두 하위 요인으로 구성되는 것으로 나타났고, 적절한 모형 적합도를 보였다. 또한 본 척도는 다른 편집증 척도와 높은 수렴타당도를 보였고, 우울 및 불안 척도와 양호한 공존타당도를 보였다. 본 척도는 높은 내적합치도를 보였으며 2주 간격으로 재검사를 실시했을 때 검사-재검사 신뢰도가 양호했다. 또한 본 척도는 대학생 집단, 비편집 환자 집단, 편집 환자 집단 간에 점수의 유의미한 차이가 나타나, 편집사고 척도 개정판의 진단적 유용성이 입증되었다. 끝으로 본 연구의 제한점과 향후 연구에 대한 방향을 논의하였다.

Abstract

This study aimed to validate the Revised Green et al. Paranoid Thoughts Scale (R-GPTS). Various analyses, including exploratory and confirmatory factor analyses, group comparisons, and correlations with related measures, were employed to assess the reliability and validity of the R-GPTS. The findings indicated that the R-GPTS comprised two subscales: namely ideas of reference and ideas of persecution. These were same as the original scale and demonstrated a favorable model fit. Additionally, the R-GPTS exhibited convergent validity with other paranoia scales and concurrent validity with depression and anxiety scales. It displayed strong internal consistency, and test–retest reliability was satisfactory when retested after a two-week interval. Furthermore, the R-GPTS exhibited significant score differences among the college student group, non-paranoid psychiatric patient group, and paranoid psychiatric patient group, affirming its diagnostic utility. This study’s implications, limitations, and future research directions were discussed.

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