脳卒中後遺症者におけるThe Nottingham Adjustment Scale Japanese Version (NAS-J)の信頼性の検討  [in Japanese] Reliability of the Nottingham Adjustment Scale Japanese Version on Stroke Survivors in Japan  [in Japanese]

【目的】Nottingham Adjustment Scale Japanese Version (NAS-J)は障害者の心理的適応を多面的に測定する尺度とされる.本研究の目的は脳卒中後遺症者を対象にNAS-Jの信頼性と内的整合性を検討することである.【方法】S市に在住する45名(男性29名,女性16名)の脳卒中後遺症者を対象として郵送による自己記入式質問紙の再テスト法を行った.統計手法は,信頼性の検討にSpearmanの相関係数とWilcoxonの順位和検定を用いた.内的整合性はCronbachのα係数を用いた.【結果】対象者の平均年齢は64.9歳,発症からの月数は50.3ヶ月,Activities of Daily living (ADL)得点は7.1点,老研式活動能力指標の平均得点は6.6点であった.再テストによる各領域の相関係数は,0.41から0.79であり有意な相関を示し2回の調査得点に有意な差がなかった.また内的整合性を示すCronbachのα係数は0.46(ローカス・オブ・コントロール)から0.85(自尊感情)であった.【結論】NAS-Jは良好な再テスト信頼性を示し,「ローカス・オブ・コントロール」の領域を除いて内的整合性は良好であった.

Backgrand and Aims: The Nottingham Adjustment Scale are applied to measure psychological adjustment. The purpose of this study was to confirm the reliability and internal consistency of Nottingham Adjustment scale Japanese Version (NAS-J) on stroke survivors in Japan. Methods: The reliability was proved using test-retest procedure. A Self-rating questionnaire was mailed to 124 community dwelled stroke survivors twice with a 21-24 days interval. Forty-five stroke survivors who returned the first and the second questionnaire and answered every item completely, participated in this study. Spearman's correlation and Wilcoxon signed-ranks test were used to compare the NAS-J scores between the 1^<st> and 2^<nd> response. Cronbach's alpha was used to confirm its internal consistency. Results: Scores of the NAS-J between the 1^<st> and 2^<nd> response were correlated significantly (p<0.05), which the coefficients were ranged from 0.41 to 0.79. No significant difference was found between the test and the retest. Cronbach's alpha in each domain ranged from 0.72 to 0.85 except at the domain "Locus of Control" (0.46). Conclusions: The results showed the reliability and the internal consistency of the NAS-J was generally good on stroke survivors in Japan.