This volume is designed to supplement contemporary textbooks on measurement and testing by explicating some often neglected topics, with particular emphasis on item response theory (IRT). Six chapters focus on the measurement of cognitive abilities, four focus on personality measurement, and a closing chapter contains an overview of IRT. The book…

The release of the newest Sixteen Personality Factor Questionnaire (16PF), Fifth Edition, is the evolution of Raymond Cattell's conceptualization of the primary components of personality by analyzing adjectives describing human behavior. This updated version continues to measure the same 16 primary personality factors with improved reliability and…