Random heterogeneity of subjects can result in increased risk of ____
a. Type I error only
b. Type II error only
c. both Type I and Type II errors
d. neither Type I nor Type II error
b
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Which of the following does not affect the way in which a received message is interpreted?
a. Emotional state b. Cognitive ability c. Bias d. All three affect the interpretation
The most accurate conclusion that can be drawn from research on the brain is that
a. normal people can be taught to use one hemisphere at a time. b. most people use the right hemisphere more often than the left hemisphere. c. only creative people can use both hemispheres simultaneously. d. the activities of both hemispheres of the brain combine to produce most behaviors.
A measure can be:
a. accurate but not valid. b. reliable but not valid. c. consistent but not reliable. d. valid but not accurate.
Dr. Wallace conducted a pre-post testing study where, in the pre-test, the subjects had their reaction times measured through the use of a 30-year-old apparatus that was built especially for this purpose
After many hours of sleep deprivation, the subjects then had their reaction times measured again, but this time Dr. Wallace used a new piece of equipment that she recently purchased. This change in instrumentation might be problematic in terms of a. testing changes. b. regression to the mean. c. maturation. d. statistical control.