Adaptation of the Environmental Worry Index into Turkish: A Validity and Reliability Study on Teacher Candidates

Kastamonu Eğitim Dergisi Pub Date : 2024-04-19 DOI:10.24106/kefdergi.1473617

Mustafa İlhan, Melehat Gezer, M. Şahin

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Abstract

Purpose: In the present research, it was aimed to adapt the Environmental Worry Index (EWI) developed by Oguntayo et al. (2023) into Turkish. Methodology: The study was conducted with the participation of 508 teacher candidates. Exploratory graph analysis (EGA), exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed for the validity studies. The reliability of the measurements collected via the Turkish form of the scale was examined via the Cronbach's alpha internal consistency coefficient. Corrected item total correlations were calculated for item discrimination, and Ferguson Delta was computed to provide a discrimination index for the entire scale. Findings: The EGA outputs and the results of parallel analysis run within the scope of EFA revealed a single-factor structure unlike the two-dimensional original form of the scale. In EFA, the variance explained for the single-factor solution was determined as 45.80% and the factor loadings ranged between .44 and .80. The CFA results showed that the fit indices for the unidimensional model were within the recommended limits and the factor loadings of the items varied between .41 and .71. Cronbach’s alpha coefficient was estimated as .84 and corrected item total correlations ranged between .36 and .62. The Ferguson’s delta statistic, on the other hand, was found to be .95. Highlights: The results obtained provide evidence that the measurements collected through the Turkish form of the EWI have adequate psychometric properties.

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将环境忧虑指数改编成土耳其语：针对师范生的有效性和可靠性研究

目的：本研究旨在将 Oguntayo 等人（2023 年）开发的环境担忧指数（EWI）改编成土耳其语。研究方法：本研究有 508 名师范生参与。在效度研究中进行了探索性图表分析（EGA）、探索性因子分析（EFA）和确认性因子分析（CFA）。通过 Cronbach's alpha 内部一致性系数检验了土耳其语量表收集的测量结果的可靠性。计算了校正后的项目总相关，以了解项目的区分度，并计算了弗格森德尔塔，以提供整个量表的区分度指数。研究结果：EGA 输出结果以及在 EFA 范围内进行的平行分析结果显示，与量表的二维原始形式不同，该量表采用了单因素结构。在 EFA 中，单因素解的方差解释率为 45.80%，因素载荷介于 0.44 和 0.80 之间。CFA 结果显示，单维模型的拟合指数在建议范围内，各项目因子载荷在 0.41 至 0.71 之间。Cronbach's alpha 系数估计为 0.84，校正后的项目总相关系数介于 0.36 和 0.62 之间。另一方面，弗格森三角统计量为 0.95。亮点所获得的结果证明，通过土耳其版 EWI 收集的测量结果具有充分的心理测量特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Kastamonu Eğitim Dergisi

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