Comparison of Latent Longitudinal Models (LLM-Gollob) and nonrecursive SEM modeling applied to stress and alcohol use among adolescents. How to infer direction of causality when data does not have enough time points (e.g. cross-sectional data, or 2 wave only for mediation models, or 3 wave only for 2-step mediations). #Evaluation2009 #QuantitativeMethods-TheoryandDesign #SEM #HowTo #use #stress #alcohol #Alcohol,DrugAbuse,andMentalHealth #2009Conference #Youth