Monique is planning to run a single-case study on a roommate. She plans to manipulate both
her roommate's exercise and eating habits for one week to see how they affect mood. How could
Monique best improve this design?
A) add a third variable to improve external validity
B) get informed consent from the roommate
C) only manipulate one variable at a time
D) use a standardized measurement for mood
C
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About what percentage of the adults in the world are dominantly right-handed?
a. 50% c. 75 to 80% b. 65 to 70% d. 85 to 90%
REM sleep refers to __________
a. dreamless sleep. b. sleep induced by sleeping pills. c. sleep periods in which sleepwalking is likely. d. sleep periods in which a person's eyes move rapidly . e. sleep that occurs when you are daydreaming.
Which of the following statements is true of hypnosis?
A. Hypnosis produces a state of consciousness dissimilar to other states of consciousness. B. Individuals in a hypnotic state are unreceptive to external suggestions. C. Individuals in a hypnotic state show characteristics of people in a relaxed waking state. D. Widespread areas of the cerebral cortex are disabled when individuals are in a hypnotic state.
Walter is a 13-year-old boy who tortures animals, picks fights with smaller boys,
underachieves in school, and talks about committing suicide. His behavior problems suggest that he may have been ______. a. adopted b. physically abused or neglected c. a victim of fragile X syndrome d. brain damaged either before or during birth