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Student‐reported past grades were compared with school‐reported grades as to their usefulness in predicting success in mathematics courses. Student‐reported grades were as valid as school‐reported grades in predicting criteria of algebra success but were slightly less valid in predicting criteria of geometry success. It is concluded that for the purposes described here, student‐reported grades may be used.
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Hanna et al. (1970) studied this question.
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