المستخلص: |
This study aimed to use five statistical forms to quantify content validity (content validity ratio CVR, Kappa coefficient k, average congruency percentage ACP , content validity index CVI , and rWG index) for three psychological intruments (mental defeat scale, boredom scale, and verblizer-visulizer cognive style questionnaire). A panel of (10) content experts were asked to rate each instrument item in terms of relevance, clarity, simplicity, and ambiguity on a four- point ordinal scale. The analysis revealed that: The rWG index produce the minimum rate for the content validy criteria on the item-level followed by content validity ratio CVR and then Kappa coefficient (k) and finally content validity index CVI as the maximum rate for all the instruments used. The rwG index produce the minimum rate for the content validy criteria on the scale-level followed by content validity ratio CVR followed by Kappa coefficient (k) and then content validity index CVI and finally average congruency percentage ACP as the maximum rate for all the instruments used. There was inconsistency of content validity ratio CVR, Kappa coefficient k, average congruency percentage ACP, content validity index CVI, and rWG index for any instrument on the item-level and scale level. Generaly, quantitative methods used to confirm the content validity of the three new tools increase the amount of information available for detecting the psychometric properties and increase confidence in the content validity of the tools.
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