Everything can be taken from a man but one thing: the last of the human freedoms—to choose one’s attitude in any given set of circumstances, to choose one’s own way. Viktor Frankl



Although classical models on validity divided validation into various “validities” (such as content validity, criterion validity and construct validity), the current view is that validity is a single construct. Using Messick’s unified and expanded theory of validity, which includes the evidential and consequential bases of test interpretation, this paper evaluates the validity of the Organic ScoreCard (OSC). The Organic ScoreCard is a 108-item scale measuring the concept of “consciousness”. After addressing each of the key aspects of construct validity (consequential, content, substantive, structural, external and generalisability), it was concluded that the Organic ScoreCard has construct validity on each of these aspects.

Keywords: consequential validity, content validity, empirical research, external validity, generalisability validity, structural validity, substantive validity, test interpretation, test validity, validity evidence.

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