Please report on the fit of your model

• E.g., R2, Adj. R2, F test (for regressions)
• E.g., Log likelihood test against a null model, hit rate, hit probabilities (for Logit models)
• Validation on a holdout sample

If you have estimated “competing” models, show the fit statistics for all models, and then motivate your final model choice.

Provide diagnostic plots, where appropriate.

Source: Datta, H., Foubert, B., & Van Heerde, H. J. (2015). The challenge of retaining customers acquired with free trials. Journal of Marketing Research, 52(2), 217 234.