Numerous studies have shown that LST shields children against other substance use and problem behaviors in addition to LST.
A study by researchers from Iowa State University led by Dr. Richard Spoth yielded results consistent with those of Dr. Crowley’s team, providing further support for LST as an effective tool for preventing substance use among youth. Dr. Spoth and colleagues randomized students from 36 Iowa schools into three experimental groups: LST alone, LST plus SFP, and a control group. Dr. Spoth’s team periodically collected questionnaire data from the study participants from 7th grade through age 22.
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