家事関連困難感尺度（Perceived Home Management Hassles Scale）作成のための段階反応モデルを用いた項目選定

Item Selection Using the Graded Response Model for Development of Perceived Home Management Hassles Scale

要旨

　目的：家事関連困難感尺度を開発する第一段階として，項目を作成・選定する．

　方法：育児・介護・家事に関する文献を基に17項目を作成し，協力が得られた団体でWeb調査を行った．回答分布，識別力，内容妥当性の観点で選定の議論を行った．合計点を育児・介護の有無で比較し，育児不安尺度・介護負担尺度との相関係数を算出し，育児不安尺度の「要介入群」を予測するAUCを算出した．

　結果：1,443名に依頼し，433名から回答を得た（うち女性376名，育児中143名，介護中60名）．選定した5項目の合計点は育児中・介護中で有意に高く（9.2 vs. 6.3，p＜0.001；8.8 vs. 7.1，p＝0.019），育児不安・介護負担と相関があり（|r|＝0.27〜0.53），要介入群を予測した（AUC＝0.823）．

　結論：内容的にも計量心理学的にも妥当と考えられる5項目5件法の自記式尺度を作成できた．

　Purpose: We have developed a scale, which we named the "Perceived Home Management Hassles Scale".

　Methods: Seventeen items were developed based on previous articles related to childcare, caregiving, and housework. A web-based survey was conducted among members of a nursing academic society. The researchers engaged in discussions to select appropriate items considering factors such as the ceiling/floor effect, non-response rate, item discrimination(using the graded response model), and content validity. The total scores of the selected items were compared based on the childcare/caregiving status, and correlation coefficients were calculated in relation to a parenting stress scale and a caregiver burden scale. Furthermore, we calculated the area under the curve(AUC) to predict the group that requires intervention based on the parenting stress scale.

　Results: We received responses from 433 respondents, ranging in age from their 20s to over 60s. Of these, 376 were women, 143 were raising children, and 60 were caregivers. Five items were selected based on the distribution of responses and content validity. The total score was significantly higher for those involved in either childcare or caregiving(9.2 vs. 6.3, p ＜ 0.001; 8.8 vs. 7.1, p = 0.019). The total score correlated with parenting stress and caregiver burden(|r| = 0.27-0.53), and was able to predict the group that requires intervention(AUC = 0.823).

　Conclusion: We developed a 5-item, 5-point Likert scale that can be self-administered and completed online. It is suggested to have content and psychometric validity.