An examination of existing data was conducted to determine the effects of different kindergarten options on subsequent academic achievement in French immersion programs. It was concluded that there was no evidence for any superiority in outcomes for full-day bilingual as compared to half-day French kindergarten. No clear trends emerged in the comparison of full-day bilingual vs. half-day English groups at the grade 1 level, although differences in French skills were apparent between these two groups in grades 2 and 3. These trends are interpreted as tentative evidence that exposure to French in kindergarten influences subsequent performance in French. Analysis of further studies confirmed this interpretation, although several studies indicated the possibility of students who did not experience French kindergarten closing the gap in French skills. Virtually no data were found that considered possible differential effects on half-day vs. full-day kindergartens on students with different background characteristics. (Author/JB)