According to the in focus box, "gender differences in responding to stress," a study investigating the effect of hormones on stress reduction found that healthy men who received a dose of the hormone before being subjected to a stressful procedure were less anxious and had lower cortisol levels than the men whom received a placebo.

Match the following items. 1. free enterprise system 2. mixed economy 3. the former soviet union 4. land and capital (a) private and state ownership of business (b) factors of production (c) private ownership of capital (d) command economy

The social contact theory states that

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk