When a probability sample is used, the researcher is able to specify the probability that
a. the obtained results are accurate
b. the sampling error is zero
c. any individual in the population will be in the sample
d. the sample is random
e. the sample is properly stratified
The process of having experts in the field decide whether a particular piece of research should be published is called
a. institutional review
b. paper approval
c. editorial consent
d. scientific critique
e. peer review
Which of the following is not a means by which researchers disseminate their findings to other scientists?
a. poster sessions
b. publication of articles in journals
c. informal contact
d. peer review
e. presentations at professional meetings
If a survey researcher reports that her results are accurate within four percentage points, four percent is the
a. sampling frame
b. stratum
c. quota
d. probability
e. error of estimation
Participants in a study were asked to rate their mood on the following scale:
Pleasant: : : : : : : : Unpleasant
This item used a (an)
a. fixed-alternative response format
b. observational rating scale
c. Likert scale
d. frequency rating
e. bipolar adjective scale
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