Given that the mean is 500 and the standard deviation is 100 on one section of the SAT, what is the approximate probability of a student scoring 400 or lower or 500 or higher on the test?

In Marcia's theory, __________ describes individuals who have identities that are determined largely by adults, rather than from personal exploration

a. diffusion c. moratorium b. foreclosure d. achievement

Pamela signed up for a study that would test the effects of a new experimental drug. She knew that only half the participants would actually receive the drug, while the rest would receive a placebo. However, Pamela is unsure whether the drug she is receiving is real. Pamela is taking part in:

a. a single-blind research study b. an unethical experiment c. a case study d. a study with no external validity