Mastering Content Validation: A Guide to Calculating the Content Validity Index (CVI)

A crucial component of developing research tools is content validity, which guarantees that the tool measures the target components as intended. When evaluating content validity, especially by expert assessment, the Content Validity Index (CVI) is a widely utilised technique. The procedures for constructing the tool, the Selection of the expert panel, the Comprehensive guide for calculating CVI, and the statistical calculations of both item-level (I-CVI) and scale-level (S-CVI) indices are all covered in this paper. A case study illustrates how these techniques are used in practice and provides researchers with an easy-to-follow, sequential procedure.