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Stuart, Elizabeth A.; Green, Kerry M. – Developmental Psychology, 2008
Matching methods such as nearest neighbor propensity score matching are increasingly popular techniques for controlling confounding in nonexperimental studies. However, simple k:1 matching methods, which select k well-matched comparison individuals for each treated individual, are sometimes criticized for being overly restrictive and discarding…
Descriptors: Marijuana, Correlation, Adolescents, Adolescent Development