Use of estimated CPI factor scores to formulate personality types

CPI scale scores were correlated with specially-scored CPI factor scales, and the results indicated that such factor scores could be estimated reasonably by the standard scales. By the use of CPI scales as measures of the two major factors of that instrument, the incidence of profile types in a normal sample was tabulated. For both males and females, six types accounted for 80% of the protocols: the first three types accounted for over 50% of the individuals. It was suggested that this type of analysis might contribute to interpretation of CPI protocols.