Are sexually active teenagers any better informed about AIDS and other potential health problems related to sex than teenagers who are sexually inactive? A 15-item test of general knowledge about sex and health was administered to random samples of teens who are sexually inactive, teens who are sexually active but with only a single partner (“going steady”), and teens who are sexually active with more than one partner. Is there any significant difference in the test scores?

Inactive One Partner One Partner 10 11 12 12 11 12 8 6 10 10 5 4 8 15 3 5 10 15