PERFORMANCE: EXPERIMENTAL APPROACHES
In the analysis of personality relatively little has been done with experimental techniques in contrast with what has been done with inventory, questionnaire, and related techniques. It may be that the area encompassed in personality research is not amenable to treatment by experimental methods, or it may be that those interested in personality measurement have not been, primarily, experimental psychologists. There is considerable truth in both of these premises, but we ought to be sure that sufficient and adequate experimentation is undertaken in the field of personality measurement before we become tempted to conclude that its problems are not amenable to experimental attack.
We shall first find it profitable to review several of the studies which Eysenck reports in his volume Dimensions of Personality. In this volume, Dr. Eysenck reports several attempts to determine by experimental means some of the differences between clinically diagnosed neurotics and nonneurotics and between clinically diagnosed introverts and extroverts. According to Eysenck, there is no correlation between neuroticism and introversion, as some of the data reported in connection with the Bernreuter Personality Inventory would seem to indicate. Eysenck came to this conclusion as a result of some factor analyses. Whether Eysenck's contention is correct or not need not deter us from examining his experimental studies. In each of these studies his subjects were selected upon the basis of clinical judgment and not upon the basis of his factorial
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Publication information: Book title: Personality Measurement. Contributors: Leonard W. Ferguson - Author. Publisher: McGraw-Hill. Place of publication: New York. Publication year: 1952. Page number: 396.