In a chapter preview we presented a study showing that the handling money reduces our perception pain. 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 paper. after the counting task the participants were asked to dip their hands into balls of very hot water at 122 f, Andrade 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 a = 0.01 b) compute Cohen's d to estimate the size of the treatment effect.
In a chapter preview we presented a study showing that the handling money reduces our perception pain. 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 paper. after the counting task the participants were asked to dip their hands into balls of very hot water at 122 f, Andrade 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 a = 0.01
b) compute Cohen's d to estimate the size of the treatment effect.
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