New blog post! explains why cross-lagged panel models are not going to save you.
Very clear and valuable post from for the : longitudinal data doesn't give you a free ticket for causality Plus I've learned a new concept: granger causality!
Anyone doing personality research or other research making inferences about causality from longitudinal data should know about Granger causality. Excellent accessible blog post.
New article by argues that longitudinal data can't be (typically) used to assert causality