An Appraisal of the Watson-Glaser Critical Thinking Appraisal |
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| Abstract: | AbstractSuccessful prediction of achievement involves, as a minimum, selecting significant variables, measuring them accurately, and finding a way of combining them to account for maximum achievement variance. Extending earlier work, this report is of two studies-one on developing a refined combination of predictors including ability, “likability,” and “motivation”; and the other aimed at validating this multiple regression equation against actual school achievement, Prediction is in terms of whether students would fall in “good” or “poor” categories determined by dichotomizing the rank-ordered list of actual achievement at a grade point average of 3.33. The biserial r between the dichotomized variable of actual achievement and predicted achievement scores is .882, which is highly significant. The importance and shortcomings of the method are discussed. |
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