Assignment Task:
Directions: For the following scenarios, dictate an experimental hypothesis.
1. A psychologist takes two groups: one that is given a painkiller for migraine headaches and one that is given a placebo. Neither group knows about the presence of the placebo. The psychologist tests the patients after two hours to see if the headache still remains.
2. Researchers compared mental hospital admission rates for 10 days before and after a full moon.
3. One group of subjects flies across five time zones. Another group flies a long distance, but through only one time zone. Researchers examine both groups for symptoms of jet lag.
4. Researchers use a cross-sectional design method using four groups of people, each differing in age by 10 years. Each group is given a test to measure political and social attitudes.
5. A psychologist takes a group of serial killers and gives them personality tests to see if a pattern of childhood behavior is evident.