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ERIC Number: ED014732
Record Type: RIE
Publication Date: 1966-Aug
Pages: 52
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
HEREDITARY FACTORS IN NORMAL PERSONALITY TRAITS (AS MEASURED BY INVENTORIES). LOUISVILLE TWIN STUDY, RESEARCH REPORT NUMBER 19.
VANDENBERG, STEVEN G.
RESEARCH ON HEREDITARY FACTORS IN NORMAL PERSONALITY TRAITS, AS MEASURED BY INVENTORIES, HAS BEEN LIMITED BY THE FOLLOWING FACTORS--(1) DATA DRAWN FROM ADOLESCENT, NOT ADULT, TWINS, (2) OMISSION OF MENTALLY ILL TWINS, (3) SMALL SIZE OF SAMPLES, (4) VARIABILITY STUDIED ONLY WITHIN FAMILY, (5) SMALL, ISOLATED, UNCOORDINATED STUDIES, AND (6) PROBLEMS IN BASIC PERSONALITY THEORY. IMPORTANT THEORIES DISCUSSED ARE--(1) HYMAN'S EIGHT PERSONALITY TYPES AND THREE PERSONALITY DIMENSIONS, (2) JUNG'S SYSTEM OF FUNCTIONS, (3) VERNON'S SCHEMA OF VARIOUS PERSONALITY TRAIT RELATIONSHIPS, AND (4) SCHAFER'S THREE DIMENSIONS OF PARENTAL BEHAVIOR. REPORTS OF TWIN STUDIES OF PERSONALITY ARE ANALYZED. DYADIC POLARIZATION IN IDENTICAL TWINS MAY HAVE BEEN EXAGGERATED. THERE ARE NO IMPORTANT SEX DIFFERENCES OF BOY-GIRL TWINS IN PERSONALITY. THE STABILITY OF TWIN DIFFERENCES OVER TIME HAS BEEN PARTIALLY SUBSTANTIATED. THERE ARE CONSIDERABLE HERDITARY COMPONENTS IN PERSONALITY, BUT IT IS PREMATURE TO ESTIMATE THE PROPORTION. NEW QUESTIONNAIRES ARE NECESSARY TO STUDY THIS AREA. THE STRONGEST EVIDENCE FOR HEREDITARY FACTORS EXIST FOR EXTRAVERSON-INTROVERSION, EMOTIONALITY, AND ACTIVITY. THERE IS INDIRECT EVIDENCE FOR THE PRIMARY-SECONDARY FUNCTION, AND CONFLICTING EVIDENCE FOR NEUROTICISM. THE EVOLUTIONARY SIGNIFICANCE OF THESE PERSONALITY VARIATIONS WAS HYPOTHESIZED. (WR)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: Louisville Univ., KY.
Identifiers: N/A