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In the Chapter Preview we presented a study showing that handling money reduces the perception pain (Thou, Vohs, & Baumeister, 2009). In the experiment, a group of college students was told that they were participating in a manual dexterity study. Half of the students were given a stack of money to count and the other half got a stack of blank pieces of paper. After the counting task, the participants were asked to dip their hands into bowls of very hot water (122°F) and rate how uncomfortable it was. The following data show ratings of pain similar to the results obtained in the study. Counting Money Counting Paper 7 9 8 11 10 13 6 10 8 11 5 9 7 15 12 14 5 10 a. Is there a significant difference in reported pain between the two conditions? Use a two-tailed test with α = .01 . b. Compute Cohen’s d to estimate the size of the treatment effect.

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Statistics for The Behavioral Scie...

10th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781305504912
BuyFind

Statistics for The Behavioral Scie...

10th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781305504912

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Chapter
Section
Chapter 10, Problem 14P
Textbook Problem

In the Chapter Preview we presented a study showing that handling money reduces the perception pain (Thou, Vohs, & Baumeister, 2009). In the experiment, a group of college students was told that they were participating in a manual dexterity study. Half of the students were given a stack of money to count and the other half got a stack of blank pieces of paper. After the counting task, the participants were asked to dip their hands into bowls of very hot water (122°F) and rate how uncomfortable it was. The following data show ratings of pain similar to the results obtained in the study.

    Counting Money Counting Paper
    7 9
    8 11
    10 13
    6 10
    8 11
    5 9
    7 15
    12 14
    5 10

a. Is there a significant difference in reported pain between the two conditions? Use a two-tailed test with α = .01 .

b. Compute Cohen’s d to estimate the size of the treatment effect.

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