Example: Unrepresentative sample
Shere Hite wrote a book in 1987 called “Women in Love”
100,000 questionnaires about love, sex, and relationships sent to women’s groups. Only 4,500 questionnaires returned.
Entire book devoted to results of survey.
Examples: 91% of divorcees initiated the divorce; 70% of women married 5 years committed adultery.