According to self-regulated learning theory, the activities of studying and using learning strategies, which reflect self-regulated learning, promote academic achievement. In contrast, a student's participation in other activities may not produce positive effects. In the present study, structural equation modeling was used to test these hypotheses in a sample of 593 full-time, Ist-year undergraduates in Hong Kong. The results indicated that studying and using elaborative learning strategy were positively related to the student's self-assessed learning. Studying was also related positively to the expected grade point average. These results provide some support for self-regulated learning theory. Relationships between other activities and self-assessed learning were negative and nonsignificant; relationships between other activities and expected GPA were mixed.[Copyright of Journal of Genetic Psychology is the property of Psychology Press . Full article may be available at the publisher's website: http://dx.doi.org/10.1080/00221329809596142 ]