Compute difference scores for each participant. Insert them into the table!

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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21

For #20 - 29: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for back pain.
Prior to testing the patch, each of the patients (n = 7) rated their current level of back pain on a scale from 1 to 10.
After wearing the patch for 90 minutes, a second pain rating is recorded. The data in this repeated-measures design
are as follows:
%3D
Pain
Pain
D scores
D2
SS
variance of D=s²
df
Before
After
7
4
SMD
4
n
2
t = MD / SMP.
3
4
2
1
|
21. Compute difference scores for each participant. Insert them into the table!
Transcribed Image Text:For #20 - 29: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for back pain. Prior to testing the patch, each of the patients (n = 7) rated their current level of back pain on a scale from 1 to 10. After wearing the patch for 90 minutes, a second pain rating is recorded. The data in this repeated-measures design are as follows: %3D Pain Pain D scores D2 SS variance of D=s² df Before After 7 4 SMD 4 n 2 t = MD / SMP. 3 4 2 1 | 21. Compute difference scores for each participant. Insert them into the table!
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