For this study, Principal Component Analysis (PCA) was used as the extraction method, and Varimax rotation was applied to achieve a clearer factor structure. The ...
For this study, Principal Component Analysis (PCA) was used as the extraction method, and Varimax rotation was applied to achieve a clearer factor structure. The Kaiser-Meyer-Olkin (KMO) value is expected to be above .60, indicating that the sample is adequate for factor analysis. Additionally, Bartlett’s Test of Sphericity is expected to be statistically significant (p < .05), confirming that the variables are sufficiently correlated to proceed with EFA. A total of 15 items were included in the analysis. Based on the eigenvalue greater than 1 criterion and the theoretical structure of the questionnaire, three factors were retained. These factors correspond to:
- Frequency and variety of use
- Accuracy and confidence
- Challenges in using complex sentences
Items with factor loadings above .40 were retained, while any items with low loadings or strong cross-loadings would be considered for removal.
