In an experimental procedure, the variable that is under the control of the experimenter is known as the __________ variable.
a. dependent
b. extraneous
c. independent
d. matching
Question 2Good experimental procedure in the above study (29) would include
a. providing the people on the waiting list with a self-help version of the same treatment received by the other group.
b. matching participants on initial severity of depressive symptoms.
c. both of the above
d. neither of the above
Question 3Researchers at a psychology clinic screen all new clients via phone interview, and over a few weeks have a list of 40 new clients who meet criteria for depression. Twenty receive cognitive-behavioral treatment, and the other twenty are told that they are on a waiting list. The independent variable in this study is __________, and the dependent variable is __________.
a. depression level; treatment
b. treatment; depression level
c. length of study; depression level
d. treatment; length of study
Question 4__________ designs are those that evaluate or compare individuals at the same point in time, while __________ designs follow the same participants over time.
a. Cross-sectional; longitudinal
b. Longitudinal; cross-sectional
c. Quasi-experimental; experimental
d. Experimental; longitudinal
Question 5Which of the following statements about factor analysis is NOT true?
a. Factor analysis is a type of correlational method.
b. Factor analysis is used to determine cause and effect in a large array of variables.
c. A factor analysis is only as useful as the measures that are included in the analysis.
d. All of the above statements are true of factor analysis.
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