HA, RD and NS range from 0.58 to 0.84, for measures collected an average of 2 years apart,26 it is possible that self-report biases and differences in subjective interpretation of questionnaire items may introduce error in the assessment of traits. Second, different instruments reflect different models of personality, highlighting philosophical differences in schools of thought about core components of personality. It therefore remains unclear to what degree the phenotypes in individuals assessed via TCI overlap with those obtained in individuals assessed via NEO-PI-R.
