Is more better? Outcome and dose of a universal drug prevention effectiveness trial.
Two evidence-based interventions, Life Skills Training and TimeWise, were combined in an effectiveness trial. Participants were predominately African American youth (N = 715; M (age) = 12). The study authors provide an empirical demonstration of the implications of incorporating dosage information in intervention outcome analyses. Study results showed no program-related benefits for drug use. Results indicated intervention-related benefits for assertiveness and anxiety management skills and drug use intentions as well as a reduction in detrimental leisure motivations. High program exposure and lesson coverage tended to be connected to intervention benefits. Study findings also documented ways that dosage information provides insight into interventions and their effects.
Department of Psychology, Stockholm University, Frescati Hagv. 14, Stockholm, Sweden. laura.ferrer-wreder@psychology.su.se
Laura
L
Ferrer-Wreder
Hans Saint-Eloi
HS
Cadely
Celene E
CE
Domitrovich
Meg L
ML
Small
Linda L
LL
Caldwell
Michael J
MJ
Cleveland
D000293:Adolescent; D001741:Black or African American / Q000706:statistics & numerical data*; D001007:Anxiety; D001242:Assertiveness; D016009:Chi-Square Distribution; D002648:Child; D015331:Cohort Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008960:Models, Psychological; D009042:Motivation; D011581:Psychological Tests; D040242:Risk Reduction Behavior; D057566:Self Report; D013223:Statistics as Topic; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000517:prevention & control; D011795:Surveys and Questionnaires; D013997:Time Factors; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology