Attention to teaching and learning issues on a weekly basis appears to have been helpful in developing graduate students' potential as effective instructors and was well received by a majority of graduate instructors. Results of student evaluations indicate that graduate instructors in the trial group were rated more favorably than those in the comparison group in the areas of being prepared, providing lucid explanations, being effective at helping students learn to think, and overall performance.
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Nurrenbern et al. (1999) studied this question.