Development of a Scale Measuring Genetic Variation Related to Expressive Control

Steven W. Gangestad, Jeffry A. Simpson

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


ABSTRACT It has been theorized that a substantial genetic component underlies the Self‐Monitoring Scale. The identity of this component, however, is not yet known. In order to identify and better understand it, a more precise measure of the component is required. The present research attempted to (a) identify an axis of the self‐monitoring two‐factor space with maximum genetic variance; and (b) bootstrap a scale more highly correlated with this genetic maximum than is the Self‐Monitoring Scale using twins. Evaluation of the new scale against criteria of validity indicates that scale construction was reasonably successful. The new measure had a cross‐validated monozygotic twin intraclass correlation of .76 and a dizygotic twin intraclass correlation of .16. This work yields a new research tool and suggests a new approach to personality assessment. Correlates of the new measure as well as theoretical and methodological issues relevant to the measurement of a latent genetic entity are discussed

Original languageEnglish (US)
Pages (from-to)133-158
Number of pages26
JournalJournal of personality
Issue number2
StatePublished - Jun 1993


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