PSY 285 Exam 4 | Questions and Answers In a 2 x 3 factorial design, there are _____ main effect(s) and _____ interaction effect(s) possible. 2; 1 Which of the following is a reason why a researcher may design an experiment with more than two levels of an independent variable? A design with only t...
In a 2 x 3 factorial design, there are _____ main effect(s) and _____ interaction effect(s)
possible.
2; 1
Which of the following is a reason why a researcher may design an experiment with
more than two levels of an independent variable?
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.
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, there are _____ possible main effects and _____ possible interactions.
3;4
Which of the following is least likely to be true of a 2 x 2 factorial design?
There is always a significant interaction between the independent variables.
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?
1
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?
There may be an effect of aggressive play.
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 responsibility assigned to the driver. Which of the
following represents the factorial design?
3x3
Internet research by Strassberg and Holty (2003) compared responses to women's
Internet personal ads. The researchers presented participants with an ad focusing on
different characteristics such as 1) slim and attractive, 2) sensual and passionate, 3)
painting and hiking, or 4) financially independent and ambitious. This is an example of a
_____ design.
Factorial
, A researcher employs an IV? PV design to examine attitudes toward cheating. She
presents freshmen from a private university with a written account describing a male or
female student who was accused of cheating on an exam. The same procedure is
repeated for a sample of freshmen from a public university. After reading the account,
the students were asked to assign an appropriate punishment. The PV in this design
would be the:
university attended (private or public).
A study involves a 3 x 4 x 2 factorial design. How many independent variables are being
studied?
3
A 2 x 2 factorial design was used to study the effects of participant gender and style of
persuasion on attitude change using 40 individuals. This is an example of a(n) _____
design.
IV x PV
Identify the design of a study that manipulates the temperature in a room (warm or
cold); difficulty of material (easy, difficult); and the amount of material (low, moderate,
high).
2x2x3
A researcher states that "anxiety decreases performance irrespective of the participants'
motivation levels." This means that there is a(n)_____.
main effect of anxiety
With a(n) _____, the results are analyzed as if you had separate experiments at each
level of the other independent variable.
simple main effect
If a researcher believes that a nonmonotonic relationship may exist between two
variables, he or she would need to:
include more than two levels of the independent variable.
A factorial design involves:
manipulating two or more independent variables in a single experiment.
A researcher designs an experiment by manipulating the following variables:
temperature (low or high); illumination level (low or high); and time of testing (day or
night). For a completely repeated measures design, how many participants would the
researcher require in order to have 10 participants per condition?
10
Dr. Parker finds that judgments of responsibility for an automobile accident is greater for
male drivers if the outcome is severe than mild. However, for female drivers, ratings are
the same irrespective of the outcome. These findings suggest:
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