Construct validity of the Japanese version of occupational self assessment version 2 for occupational therapy students

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  • Ishii Yoshikazu
    Course of Occupational Therapy, School of Health Sciences, Akita University
  • Yamada Takashi
    Graduate School of Human Health Sciences, Tokyo Metropolitan University

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  • 「作業に関する自己評価・改訂版」の構成概念妥当性の検討 : 作業療法学生を対象として
  • サギョウ ニ カンスル ジコ ヒョウカ カイテイバン ノ コウセイ ガイネン ダトウセイ ノ ケントウ サギョウ リョウホウ ガクセイ オ タイショウ ト シテ

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We evaluated 98 occupational therapy students by inspecting the construct validity of the Japanese version of Occupational Self Assessment version 2 (OSA II). We validated the construct validity by using a factor analysis. The results were as follows: 1) Four factors: the performance of task of self-goal, performance of task of activities of daily living, performance of interpersonal exchange, performance of leisure, were obtained from factor analysis between the items of Myself in OSA II. 2) Four factors: the performance environment of leisure, supportive human environment, environment of life and rest, and productive environment, were obtained from factor analysis between the items of Environment in OSA II 3) There were 15 out of 21 items (71.4%) of Myself in OSA II in the four factors, and all 8 items of Environment in OSA II in the four factors. 4) It shows that four factors of Environment almost correspond to four factors of Myself. From above, we considered that OSA II evaluated the performance and environment of study students. We concluded that OSA II had an satisfactory construct validity.

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