Example 11.1 in this chapter presented a repeated- measures research study demonstrating that swearing can help reduce ratings of pain (Stephens, Atkins, & Kingston, 2009). In the study, each participant was asked to plunge a hand into icy water and keep it there as long as the pain would allow. In one condition, the participants repeated their favorite curse words while their hands were in the water. In the other condition, the participants repeated a neutral word. In addition to lowering the participants' perception of pain, swearing also increased the amount of time that they were able to tolerate the pain. Data similar to the results obtained in the study are shown in the following table. a. Do these data indicate a significant difference in pain tolerance between the two conditions? Use a two-tailed test with a = .05. b. Compute r, the percentage of variance accounted for, to measure the size of the treatment effect. c. Write a sentence demonstrating how the results of the hypothesis test and the measure of effect size would appear in a research report. Amount of Time (in Seconds) Participant Swear words Neutral words 94 59 70 61 3 52 47 4 83 60 46 35 6. 117 92 69 53 39 30 9. 51 56 10 73 61 1.
Example 11.1 in this chapter presented a repeated- measures research study demonstrating that swearing can help reduce ratings of pain (Stephens, Atkins, & Kingston, 2009). In the study, each participant was asked to plunge a hand into icy water and keep it there as long as the pain would allow. In one condition, the participants repeated their favorite curse words while their hands were in the water. In the other condition, the participants repeated a neutral word. In addition to lowering the participants' perception of pain, swearing also increased the amount of time that they were able to tolerate the pain. Data similar to the results obtained in the study are shown in the following table. a. Do these data indicate a significant difference in pain tolerance between the two conditions? Use a two-tailed test with a = .05. b. Compute r, the percentage of variance accounted for, to measure the size of the treatment effect. c. Write a sentence demonstrating how the results of the hypothesis test and the measure of effect size would appear in a research report. Amount of Time (in Seconds) Participant Swear words Neutral words 94 59 70 61 3 52 47 4 83 60 46 35 6. 117 92 69 53 39 30 9. 51 56 10 73 61 1.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Example 11.1 in this chapter presented a repeated-
measures research study demonstrating that swearing
can help reduce ratings of pain (Stephens, Atkins, &
Kingston, 2009). In the study, each participant was
asked to plunge a hand into icy water and keep it there
as long as the pain would allow. In one condition, the
participants repeated their favorite curse words while
their hands were in the water. In the other condition,
the participants repeated a neutral word. In addition to
lowering the participants' perception of pain, swearing
also increased the amount of time that they were able to
tolerate the pain. Data similar to the results obtained in
the study are shown in the following table.
a. Do these data indicate a significant difference in
pain tolerance between the two conditions? Use a
two-tailed test with a = .05.
b. Compute r, the percentage of variance accounted
for, to measure the size of the treatment effect.
c. Write a sentence demonstrating how the results of
the hypothesis test and the measure of effect size
would appear in a research report.
Amount of Time (in Seconds)
Participant
Swear words
Neutral words
94
59
70
61
3
52
47
4
83
60
46
35
6.
117
92
69
53
39
30
9.
51
56
10
73
61
1.
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