A researcher who tells participants that a questionnaire is measuring political attitudes when in fact it is measuring racial prejudices, is committing ____

In any given year, between 16 and _____ people out of 100,000 people develop schizophrenia.

a. 100 b. 50 c. 200 d. 40

Suppose that the local newspaper asks its readers to tear out a form from the paper, and indicate on it whether or not they are for or against allowing user fees to be imposed for medical services. Seventy-five percent of those who respond are against user fees. What can we conclude?

a. Most people in your city are opposed to user fees b. Most readers of the newspaper are opposed to user fees c. The results are not interpretable because the sampling process is unrepresentative d. The findings apply only to readers of that newspaper e. people who opposed user fees are newspaper readers