初期キャリア形成期看護師のピア・コーチング測定尺度の開発

Development of a Peer Coaching Scale for Nurses During the Initial Career-Development Period

要旨

　目的：初期キャリア形成期看護師のピア・コーチング測定尺度の信頼性と妥当性を検討する．

　方法：専門家会議と内容妥当性指数から55項目のピア・コーチング測定尺度原案を作成した．2017年9月〜2018年3月に全国65施設の卒後2・3年目の看護師を対象に質問紙調査を実施した．318名のデータを分析対象とし，項目分析，探索的因子分析，Cronbach's α係数，外的基準との相関関係，再テスト法を行い信頼性と妥当性を確認した．

　結果：探索的因子分析の結果【互恵関係の構築行動】【援助方法の共創行動】【援助方法の補填行動】【自己変容の促進行動】の4因子20項目が抽出された．下位尺度のCronbach's α係数は .82〜.89であった．協同作業認識尺度の「協同効用」との相関係数は .33，看護師チームのチームワーク測定尺度との相関係数は .33であった．再テスト法では下位尺度の級内相関係数が .65〜.79であった．

　結論：初期キャリア形成期看護師のピア・コーチング測定尺度の信頼性と妥当性が検証された．

　Purpose: This study aimed to consider the reliability and validity of the Peer Coaching Scale for Nurses during the initial career-development period.

　Methods: The researchers selected 55 items from an initial scale of 64 items based on peer debriefing and their content validity index. A questionnaire survey was conducted for nurses in the second and third years after graduation from 65 institutions nationally from September 2017 to March 2018. Data obtained from 318 nurses were analyzed. The reliability and validity were examined using item analysis, exploratory factor analysis, Cronbach's α coefficient, the confirmation of correlation with external criteria, and the test-retest method.

　Results: As a result of the exploratory factor analysis, four factors and 20 items were extracted. The four factors were “the act of building a reciprocal relationship,” “the act of co-creating a care method,” “the act of compensating a care method,” and “the act of accelerating self-transformation.” The Cronbach's α coefficient for the overall scale was .93. The Cronbach's α coefficients for the subscales ranged from .82 to .89. The correlation coefficient of the Peer Coaching Scale with the subscale “usefulness of cooperation” of the Belief in Cooperation Scale was .33 (p < .01), and with the Teamwork Measure for Nursing Teams was .33 (p < .01). Using the test-retest method, the intraclass correlation coefficient for the subscales ranged from .65 to .79 (p < .01).

　Conclusion: The reliability and validity of the Peer Coaching Scale for Nurses during the Initial Career-Development Period were verified.