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Plot of the Activity Level × Alone interaction for predicting positive affect based on the unstandardized regression coefficients for the within-subjects main effects and interaction terms generated from the multilevel model. There were 2,210 Level 1 observations (n = 72 physical activity/alone, n = 123 physical activity/not alone, n = 782 not physical activity/alone, n = 1,233 not physical activity/not alone).
