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A Clustered Randomized Controlled Trial for the Prevention of Alcohol Misuse among Maltese Teenagers
Peer reviewed
Download full textPortelli, Pamela – International Journal of Emotional Education, 2018
This study was designed to evaluate the effectiveness of a brief Alcohol Expectancy Challenge, with the aim of reducing the prevalence of alcohol consumption amongst Maltese teenagers.119 students were randomly allocated to a control or a 3-hour expectancy challenge session. Alcohol consumption and alcohol expectancies were investigated via a…
Descriptors: Randomized Controlled Trials, Prevention, Alcohol Abuse, Drinking
Dong, Nianbo; Reinke, Wendy M.; Herman, Keith C.; Bradshaw, Catherine P.; Murray, Desiree W. – Society for Research on Educational Effectiveness, 2015
Cluster randomized experiments are now widely used to examine intervention effects in prevention science. It is meaningful to use empirical benchmarks for interpreting effect size in prevention science. The effect size (i.e., the standardized mean difference, calculated by the difference of the means between the treatment and control groups,…
Descriptors: Effect Size, Correlation, Multivariate Analysis, Statistical Analysis
