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One hundred volunteer married men between the ages of 17 and 74 were divided into five age groups of 20 each and administered The Sexual Compatibility Test. Each group contained an equal number of men who rated their sexual relationship with their wives as dissatisfying, fully satisfying, or slightly to moderately satisfying. Mean scores for each age group on test scores were calculated and the significance of the differences between groups computed. Scores measuring genital sexual activity tended to decline with advancing age, though not in a straight line as found by Kinsey. Measures of nongenital sexual activity and measures of sexual pleasure varied from one age group to another. On some measures the oldest age group scored higher than younger age groups. Social, psychological, and cultural factors as possible causes for changes in sexual activity and desire with age were discussed and the impact of sexual age changes upon social problems was explored.
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Arthur L. Foster (1979) studied this question.
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