A drug and a placebo are compared for treating diabetes. A random half of the subjects receive the drug, while the other half receives the placebo. Blood glucose level is tested in all of the subjects several times a day. What type of design does this study represent?
a. Single-factor within-subjects
b. Single-factor between subjects
c. One-group pretest-posttest
d. Posttest-only design with nonequivalent control groups
b
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If you have a small number of incumbents in a job (6 people), how many should you interview as part of your job analysis?
a. all 6 b. 2 c. 4 d. 1
The _____ is the most widely used classification system for psychological disorders
Fill in the blank(s) with correct word
Which of the following is a type of learned helplessness?
A. universal B. situational C. global D. specific
Ms. Weatherbie, a music instructor, wanted to know whether students who could read music were better in choir than students who could not read music. To find out, she took two groups of students and taught one group to read music in addition to learning
the words to the songs; the other group only learned the words to the songs. This study is an example of __________. a) experimental research b) correlational research c) survey research d) theoretical research