What kind of causal modelling approach does personality research need?

Lee (2012) proposes that personality research should utilise recent theories of causality. Although
we agree that such theories are important, we also note that their empirical application has not been very successful to date. The reason may be that psychological systems are frequently characterised by feedback, nonlinearity and individual differences in causal structure. Such features do not preclude the application of causal modelling but do limit the usefulness of the approach for the analysis of typical personality data. To adequately investigate personality, intensive time series of repeated measurements are needed.