The validity of the Eysenck personality inventory studies by a technique of peer-rating item by item, and by sociometric comparisons.
D005120:Extraversion, Psychological; D006801:Humans; D009497:Neurotic Disorders / Q000175:diagnosis; D010379:Peer Group; D010551:Personality; D010555:Personality Inventory; D011593:Psychology, Social; D011594:Psychometrics; D012963:Sociometric Techniques; D013334:Students; D011795:Surveys and Questionnaires