Originally published in 1983 and written in the tradition of the British School of Psychology, Spearman, Burt, Eysenck, Cattell, this book from a well-known author was exceptional at the time in its attempt to wed quantification and psychological theory in the study of personality. The student is presented with a discussion of the different methods of measuring personality and the various findings which have been made. The results are then discussed in the light of psychological theories of personality and here the author stresses the need for a theory with a properly quantified bias. However, the emphasis on findings from measurement and not the measurement itself makes the book psychological, truly about personality and not simply another text on psychological measurement.