Sampling methods and admissions of sexual aggression among college men

Most research on the causes of the sexually aggressive behavior of nonincarcerated men uses college student samples. To examine potential biases associated with different sampling methods, we compare self‐reports of male sexual aggression from studies using random samples to those using classroom volunteers. Fewer men in the random samples admitted to sexual aggression. Several explanations for these results are considered, and an experiment is proposed to examine biases to be expected from these two methods.