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I am a personality psychologist. I am currently a Caterpillar Professor of Psychology at Bradley University. In 2000, I founded the International Sexuality Description Project (ISDP). The ISDP is a large cross-cultural research study on sex and personality. Over 100 psychologists simultaneously administered an anonymous self-report survey to 17,837 individuals representing 56 different nations, 6 continents, 13 islands, and 30 languages. Direct assessments of people's personality traits and sexual behaviors have led to innovative tests of evolutionary psychology. A second wave of the ISDP is currently underway and includes measures of subjective well-being, social dominance, sexual aggressio

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