Classroom Meetings
a. are run completely by the students
b. allow students to express their concerns
c. start with positive statements
d. all of the above
e. b and c above
e
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Under which of the following circumstances would a researcher use a quasi-experimental design?
a. Experimenter must employ a pretest. b. Experimenter must collect all the data him/herself. c. Experimenter cannot assign subjects to conditions. d. There is more than one independent variable. e. The pretest has a reactive effect.
The long-term results of the Perry Preschool Project reveal that, compared to the control group of children who did not attend the school, the children who were
involved in the project and are now grown up: a. were arrested more frequently for criminal acts than the control group were. b. had more babies than people in the control group did. c. were on public assistance (welfare) more frequently than people in the control group were. d. supported themselves or were supported by their spouses more frequently than people in the control group were. _
Discuss the differences between independent and dependent variables.
What will be an ideal response?
A researcher records the time (in seconds) it takes participants to respond (by pressing a key) to a familiar and an unfamiliar word flashed onto a computer screen. In this study, the difference in response time for each participant is compared. The type of design described here is called a
A. repeated-measures design. B. matched-samples design. C. repeated-measures design and matched-samples design.