Which of the following is true of correlations?
a. They cannot be used to determine statistical significance
b. They provide the basis for transforming observations to scales.
c. They are particularly useful with nominal scales.
d. They describe the direction and magnitude of relationships between two variables.
d
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The within-subjects ANOVA has what assumption to satisfy that states that pairs of scores from the same participants in the population must have equal variance?
What will be an ideal response?
A procedure outlined in your textbook for using dreams in problem-solving involves which of the following?
a. Use stimulus control and sleep restriction to tap into creativity during dreaming. b. Use prescription medication to increase your likelihood of dreaming. c. Concentrate on the problem just before going to bed and then use dream catching techniques. d. Increase your time spent in sleep, thus directly increasing the time for dreams to occur.
Mary was raped outside a local movie theater over two months ago. Since then, she constantly imagines the circumstances of the rape, is afraid to go to the movies or the mall and avoids doing so, and has frequent nightmares about being raped. Mary's reaction would be classified as a(n) __________ disorder
a. obsessive-compulsive b. post-traumatic stress c. acute stress d. dissociative
A brain-imaging method using magnetic fields to measure the release of energy from water in biological tissues is called _____
A) electroencephalography (EEG) B) magnetic resonance imaging (MRI) C) positron emission tomography (PET) D) computed tomography (CT)