A ______ controls for both known and unknown confounding variables by ensuring that groups are equal before the experiment begins.
a. randomized control trial
b. double-blind experiment
c. match subjects design
d. longitudinal study
Ans: A
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Psychology is unique among the sciences in its requirement that its students ____?
a. ?have a minor in the natural sciences b. ?learn the experimental method c. ?use carefully controlled observations in its procedures d. ?study the history of psychology e. ?have a liberal arts background in the humanities
The neurofibrillary tangles and amyloid plaques associated with Alzheimer's disease are observed only a. on MRI or CT brain scans
b. on functional brain scans. c. during an autopsy. d. during an EEG examination.
Which of the following is true of operational definition?
A. Operational definition defines how a researcher measures a behavior for a particular study. B. Operational definition provides a way for a researcher to directly observe a behavior for a particular research question. C. A researcher defines an operational definition of a behavior after he collects data. D. Operational definition can affect the issue of reliability in any research setting.
An admissions director for a college decides to keep the existing admissions policy since 80% of the students admitted eventually graduate. Unknown to her, 90 percent of the rejected applicants would also have been successful graduates
Her decision- making process is hampered by ______. a. hill-climbing c. the availability heuristic b. creating subgoals d. the representativeness heuristic