![]() ![]() ![]() How does construct validity differ from other forms of validity? To address these issues head on, I will use your questions as headings and take the liberty of rearranging them a bit. However, as your questions indicate, the issues involved in validity are not that simple. What exactly is construct validity? How well accepted is the concept of construct validity? How does it differ from other forms of validity? What is the best way of measuring construct validity? And finally, what are the most common threats to construct validity?ĪNSWER: The general concept of validity was traditionally defined as "the degree to which a test measures what it claims, or purports, to be measuring" (Brown, 1996, p. Recently I came across an article mentioning that a test had poor construct validity. ![]() Questions and answers about language testing statistics: ![]()
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