In a within-subjects design, the term "participant attrition" refers to the possibility that ____
a. the scores may differ from one treatment to another because of outside events
b. the scores may differ from one treatment to another because of changes in themeasuring instrument
c. the scores may differ from one treatment to another because the participants gainexperience in each treatment
d. some of the individuals in the study may leave without completing all of the treatmentconditions
d
Psychology
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If a researcher wanted to see how voting patterns have changed over the past few decades, the most useful approach is likely to be
a. observational research. b. archival research. c. experimental research d. longitudinal research.
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