Traits,states, situations,and uncertainty

The shift of paradigm from psychodynamic therapy to behavior modification has changed the views of assessment and challenged traditional broad trait concepts. Behavioral assessment has used narrow, situation-specific trait tests, state self-report tests given in situations, and behavioral observations and performance ratings. Comparison of these types of measures are reported from a study of fear reactions in three situations. Narrow trait measures are generally more predictive of behavior than broad trait measures. State measures are even more predictive when given just before the performance. But only a sampling of such state measures can be used to define a trait because of the lower reliability of states. It is argued that behavior in situations is only predictable when an adequate number of behavioral samples is used.