This study outlines the development of a multidimensional measure of collective efficacy (CE) for netball using polytomous item response theory, confirmatory factor analysis, and multilevel confirmatory factor analysis (MLCFA). Items were written to fit into six subscales following the suggestions by Paskevich, Brawley, Dorsch, and Widmeyer, (1999). The sample consisted of 537 females in 56 teams. The results showed that at the lower end of the response scale, options were not all endorsed. A six-factor correlated solution was the best-fitting model. MLCFA further produced good model data fit. The results demonstrate that the items and their underlying factor structure are grounded at both the individual and team level, with factor loadings at the team level suggesting the CE items to be a strong measure of team CE. Correlations between the CE measure and the Group Environment Questionnaire provide evidence for the validity of the CE measure.

中文翻译：

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使用多项式项目响应建模和多级验证分析开发女子无板篮球集体效能的衡量标准。

本研究概述了使用多项式项目反应理论、验证性因素分析和多级验证性因素分析 (MLCFA) 开发无板篮球集体效能 (CE) 的多维衡量标准。根据 Paskevich、Brawley、Dorsch 和 Widmeyer (1999) 的建议，将项目写入六个分量表。样本由 56 个团队的 537 名女性组成。结果表明，在响应量表的低端，并非所有选项都得到认可。六因子相关解决方案是最佳拟合模型。MLCFA 进一步产生了良好的模型数据拟合。结果表明，项目及其潜在因素结构以个人和团队层面为基础，团队层面的因子载荷表明 CE 项目是团队 CE 的有力衡量标准。