A therapist was interested in determining whether patients experiences reduced anxiety following diaphragmatic breathing exercises. She includes 9 participants in her brief study. Each patient provides a rating for current anxiety, on a scale of 1 (least anxiety) to 10 (extreme anxiety). She then instructs them on a 45-minute diaphragmatic breathing exercise. Following the exercise, each patient again rates his/her anxiety on the same 1- 10 scale. (Note that this is a repeated measures study because each patient/participant is measured twice, once before the treatment and once after the treatment.) Before After Patient treatment treatment A B 7 5 с 6 6 111 D 7 6 E 9 7 F 8 5 G 4 H I 1. Can the therapist conclude that there was a significant change in anxiety levels after treatment? Use a two-tailed test with a = .05. (Note that you will need to use - and clearly show - all 4 steps of hypothesis testing to answer this question.) 2. Compute the value of r' (percentage of variance accounted for) for these data. 3. Write a sentence showing how the outcome of the hypothesis test and the measure of effect size would appear in a research report (i.e., in APA format). Note that you can find an example of APA format for a repeated measures t-test both in your book, in the "In the Literature" section of chapter 11 on page 372, and in the example I provided in this week's resources. APA format is slightly different depending on the type of test used, so be sure to look for an example of a repeated-measures t-test!

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%
. Verizon
Done
More
Instructions:
• Show all work, including every calculation and every
formula, with proper symbols. Formulas must be those
used in the required textbook for the course.
• Use the t-table in your book to find the critical t value(s).
• Calculators are fine; computer software of any kind is
NOT. (You are welcome to use SPSS to check your
work, but all values generated/reported below must
come from hand calculations or the t table: your
book.)
Patient
A
B
C
D
E
F
G
H
I
A therapist was interested in determining whether patients
experiences reduced anxiety following diaphragmatic breathing
exercises. She includes 9 participants in her brief study. Each
patient provides a rating for current anxiety, on a scale of 1
(least anxiety) to 10 (extreme anxiety). She then instructs them
on a 45-minute diaphragmatic breathing exercise. Following the
exercise, each patient again rates his/her anxiety on the same 1-
10 scale. (Note that this is a repeated measures study because
each patient/participant is measured twice, once before the
treatment and once after the treatment.)
Before
treatment
8
7
6
7
9
8
5
9
7
After
treatment
7
5
6
3:51 PM
Chapter 11 Problem
6
7
5
4
4
4
1. Can the therapist conclude that there was a significant
change in anxiety levels after treatment? Use a two-tailed
test with a = .05. (Note that you will need to use - and
clearly show - all 4 steps of hypothesis testing to answer
this question.)
2. Compute the value of r' (percentage of variance accounted
for) for these data.
3. Write a sentence showing how the outcome of the
hypothesis test and the measure of effect size would appear
in a research report (i.e., in APA format). Note that you
can find an example of APA format for a repeated measures
t-test both in your book, in the "In the Literature" section of
chapter 11 on page 372, and in the example I provided in
this week's resources. APA format is slightly different
depending on the type of test used, so be sure to look for an
example of a repeated-measures t-test!
6%
Edit
Transcribed Image Text:. Verizon Done More Instructions: • Show all work, including every calculation and every formula, with proper symbols. Formulas must be those used in the required textbook for the course. • Use the t-table in your book to find the critical t value(s). • Calculators are fine; computer software of any kind is NOT. (You are welcome to use SPSS to check your work, but all values generated/reported below must come from hand calculations or the t table: your book.) Patient A B C D E F G H I A therapist was interested in determining whether patients experiences reduced anxiety following diaphragmatic breathing exercises. She includes 9 participants in her brief study. Each patient provides a rating for current anxiety, on a scale of 1 (least anxiety) to 10 (extreme anxiety). She then instructs them on a 45-minute diaphragmatic breathing exercise. Following the exercise, each patient again rates his/her anxiety on the same 1- 10 scale. (Note that this is a repeated measures study because each patient/participant is measured twice, once before the treatment and once after the treatment.) Before treatment 8 7 6 7 9 8 5 9 7 After treatment 7 5 6 3:51 PM Chapter 11 Problem 6 7 5 4 4 4 1. Can the therapist conclude that there was a significant change in anxiety levels after treatment? Use a two-tailed test with a = .05. (Note that you will need to use - and clearly show - all 4 steps of hypothesis testing to answer this question.) 2. Compute the value of r' (percentage of variance accounted for) for these data. 3. Write a sentence showing how the outcome of the hypothesis test and the measure of effect size would appear in a research report (i.e., in APA format). Note that you can find an example of APA format for a repeated measures t-test both in your book, in the "In the Literature" section of chapter 11 on page 372, and in the example I provided in this week's resources. APA format is slightly different depending on the type of test used, so be sure to look for an example of a repeated-measures t-test! 6% Edit
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 3 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman