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Direct linkWagstaff, David A.; Elek, Elvira; Kulis, Stephen; Marsiglia, Flavio – Journal of Primary Prevention, 2009
A nonparametric bootstrap was used to obtain an interval estimate of Pearson's "r," and test the null hypothesis that there was no association between 5th grade students' positive substance use expectancies and their intentions to not use substances. The students were participating in a substance use prevention program in which the unit of…
Descriptors: Intervals, Prevention, Grade 5, Nonparametric Statistics
