1. In a 2 x 3 factorial design, there are _____ main effect(s)
and _____ interaction effect(s) possible. - ANS ✔2; 1
2. Which of the following is a reason why a researcher may
design an experiment with more than two levels of an
independent variable? - ANS ✔A design with only two
levels of an independent variable cannot provide much
information about the exact form of the relationship
between the independent and dependent variables.
3. A researcher is interested in variables that may affect an
individual's driving ability. He has people drive a course
in wet, dry, or icy conditions. In addition, he has them
drive a vehicle with or without power steering, and with
an automatic or a manual transmission. In this design,
PSY 285 Exam 4 | Questions and Answers
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PSY 285 Exam 4
there are _____ possible main effects and _____ possible
interactions. - ANS ✔3;4
4. Which of the following is least likely to be true of a 2 x 2
factorial design? - ANS ✔There is always a significant
interaction between the independent variables.
5. In a study examining the effect of room illumination
(low, medium, high) and room temperature (cold, warm,
hot) on test performance, how many interactions are
possible? - ANS ✔1
6. In a study designed to measure aggressive play of boys
versus girls who attend public or private schools, which
of the following statements is least correct? - ANS
✔There may be an effect of aggressive play.
7. A researcher examines the physical attractiveness of a
driver involved in an automobile accident (unattractive,
average, or attractive) and the severity of damage
caused ($500, $1500, or $2500) on judgments of
PSY 285 Exam 4 | Questions and Answers
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