The purpose of a control group in experimental research is to
a. control for the subjects' desire to act according to the experimenter's expectations.
b. determine whether a treatment or independent variable actually influenced change in the dependent variable.
c. determine statistical significance.
d. control the dependent variable.
Question 2When a control group is used in experimental research, the members of the control group will be treated exactly the same as the
a. treatment group, except that they will be exposed to the independent variable.
b. treatment group in every way.
c. control group in any other psychology study.
d. treatment group, except that they will not be exposed to the independent variable.
Question 3One of the hallmarks of the experimental method that makes it different from a correlational study is that in an experiment,
a. we observe what happens in the natural world.
b. the researcher is unaware of the independent variable.
c. a variable is manipulated in a way that would not have occurred naturally.
d. there are multiple control groups.
Question 4While trying to discover the nature of the relationship between stress and blood pressure, a researcher asks participants to complete a difficult task. The researcher monitors the participants' blood pressure while some are exposed to noisy distractions and others stay in a quiet environment. This type of research is a(n)
a. correlational study.
b. experiment.
c. case study.
d. placebo control study.
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