A local television station conducts what they refer to as "surveys," in which they ask viewers to call in their opinions to various topics. These "surveys" are not considered a scientific poll because the television station
a. does not allow subjects to e-mail their responses.
b. is using a biased sample.
c. limits the response to only 20 minutes.
d. does not separate the responses according to gender or race.
B
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Which cognitive event, often attributed to the work of Martin Seligman, is hypothesized as contributing to the development and maintenance of major depression?
a) self-efficacy b) learned helplessness c) reciprocal determinism d) all-or-none thinking
Monitoring oneself is one of the key ingredients in ____
a. self-regulation b. reactance c. entity seeking d. temporal discounting
Stratified random sampling that tries to ensure an equal number of units per group is also called ____ random sampling
a. modal b. disproportionate c. independent d. proportional
Which of the following factors are responsible for some cases of Creutzfeld-Jakob disease?
a. eating infected beef b. cannibalism c. contamination of surgical instruments d. eating sheep meat infected with "scrapie"