Statistics for The Behavioral Sciences (MindTap Course List)
Statistics for The Behavioral Sciences (MindTap Course List)
10th Edition
ISBN: 9781305504912
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 14, Problem 24P

In Chapter 11 we described a research study in which the color red appeared to increase men’s attraction to women (Elliot & Niesta, 2008). The same researchers have published other results showing that red also increases women’s attraction to men hut does not appear to affect judgments of same sex individuals (Elliot et at., 2010). Combining these results into one study produces a two-factor design in which men judge photographs of both women and men, which are shown on both red and white backgrounds. The dependent variable is a rating of attractiveness for the person shown in the photograph. The study uses a separate group of participants for each condition. The following table presents data similar to the results from previous research.

    Person Shown in Photograph
    Female Male
    n=10 n=10
    White M=4.5 M=4.4
    Background Colour

for PhotographSS=6SS=7 n=10 n=10 Red M=7.5 M=4.6 SS=9 SS=8

    Person Shown in Photograph

Female

Male

n=10

n=10

White

M=4.5

M=4.4

Background Colour

for Photograph

SS=6

SS=7

n=10

n=10

Red

M=7.5

M=4.6

SS=9

SS=8

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In an online psychology experiment sponsored by the University of Mississippi, researchers asked study participants to respond to various stimuli. Participants were randomly assigned to one of three treatment groups: Group 1, the simple group, required to respond as quickly as possible after a stimulus was presented; Group 2, the go/no-go group, required to respond to a particular stimulus while disregarding other stimuli; and Group 3, the choice group, required to respond differently depending on the stimuli presented. The researcher felt that age may be a factor in determining reaction time, so she organized the experimental units by age into an 18-24 year old group (1), a 25-34 year old group (2), and a 35 and older group (3). She obtained the data given in the “Psychology data” JMP file. a)How many treatments are there? b)What type of factorial design is this? How many replications are there within each cell?

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Statistics for The Behavioral Sciences (MindTap Course List)

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