A Twin Study of Adult Gambling Behavior

Ken C Winters, Timothy Rich

Research output: Contribution to journalArticle

53 Scopus citations


A twin study explored the possible genetic influences on gambling behavior. Male monozygotic (MZ) twins (n = 42) revealed significantly greater similarity on gambling frequency associated with "high-action" games than male dizygotic (DZ) twins (n = 50). The heritability estimates for involvement in these types of games among males were moderate and significant. All MZ versus DZ comparisons among males for "low-action" games were nonsignificant, as were MZ versus DZ comparisons among females (n = 63) for both types of games. The findings suggest that genetic influences may be important in the origins of certain types of gambling by men.

Original languageEnglish (US)
Pages (from-to)213-225
Number of pages13
JournalJournal of gambling studies
Issue number3
StatePublished - Jan 1 1998

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