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Content validity is different from face validity, which refers not to what the test actually measures, but to what it superficially appears to measure.Face validity assesses whether the test "looks valid" to the examinees who take it, the administrative personnel who decide on its use, and other technically untrained observers.
A chi-squared test (also chi-square or χ 2 test) is a statistical hypothesis test used in the analysis of contingency tables when the sample sizes are large. In simpler terms, this test is primarily used to examine whether two categorical variables ( two dimensions of the contingency table ) are independent in influencing the test statistic ...
Robert W. White (1904–2001) was an American psychologist whose professional interests centered on the study of personality, both normal and abnormal.His book The Abnormal Personality, published in 1948, became the standard textbook on Abnormal Psychology.