The Criterion Problem in Personality Research

between tests and questionnaires. The questionnaires are also called inventories, schedules, and self-appraisals. None of these are tests in any real sense. By tests we shall mean objective procedures that often require formal laboratory equipment, but tests can often be arranged for group administration in paper and pencil form. The projective procedures are the nearest approach to personality tests. A projective test is essentially an ambiguous presentation to which the subject can respond in a variety of ways. In so doing he may reveal his personal idiosyncracies. The best form of protective test is one which is quite unstructured for the subject but fairly well structured for the examiner. In this manner