Sara is working hard reviewing the literature for a research study. Finally, after several days of reviewing literature, Sara stumbles across a good research idea. This would be an example of Sara using a(n) to find a research idea.
a. theory
b. everyday experiences
c. prior research study
d. functional problem
A researcher is interested in determining if different exercise programs have an influence on the amount of weight that participants lose.
Upon arriving to the experiment, the researcher assigns the participants to different exercise programs and measures the amount of weight lost over a two-month period. In this example, the exercise programs are the _________.
a. measured variable.
b. dependent variable.
c. manipulated variable.
d. where change is observed.
In the textbook, a study on monitor size was described. Specifically, the researchers wanted to know if monitor size (17, 19, & 21 inches) influenced participant's reaction time on a task.
How many levels of the independent variable were there in this study?
a. 17
b. 3
c. 2
d. 21
Dr. James is working hard on his research testing a drug which will influence the onset of a newly identified psychological disorder. Dr. James more than likely got his idea from a(n) .
a. theory.
b. everyday experience.
c. prior research study.
d. functional problem.
In the Are You Equipped? section at the beginning of the chapter, a study was described looking at the relationship between birth weight and adolescent depression.
The participants were divided into groups based on their birth weight, either low or normal birth weight. How many levels of the independent variable were there in this study?
a. 1
b. 2
c. 3
d. 4
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