I don't think the predictive power of models build from data driven happiness research is very high. I wouldn't ignore the research completely but there nothing rational about using a model just because it's data based if nobody showed that the model is useful for prediction in the relevant domain.
Haven't had one of these for awhile. This thread is for questions or comments that you've felt silly about not knowing/understanding. Let's try to exchange info that seems obvious, knowing that due to the illusion of transparency it really isn't so obvious!