To determine the effect of counseling on the self-esteem of divorced women, a researcher measures the self-esteem of a group of women before and after they have received counseling and compares the before and after measurements. What type of design does this study represent?
a. pretest-posttest control group design
b. posttest only control group design
c. one-group pretest-posttest design
d. nonequivalent control group design
c
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Which of these represents the BEST approach for choosing tests to use in a selection battery?
A) a minimal correlation between tests that each have unique predictive value B) a minimal correlation between tests that each have low r2 values C) a maximal correlation between tests that have highly overlapping predictive value D) a maximal correlation between tests and low multiple R
Which type of research study would best be used to determine how aggressive children are while playing at a schoolyard during recess?
a. confounding b. case study c. introspection d. naturalistic observation e. experiment