Research Methods for the Behavioral Sciences (MindTap Course List)
6th Edition
ISBN: 9781337672023
Author: GRAVETTER
Publisher: Cengage
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Textbook Question
Chapter 14.1, Problem 2LO
Identify the basic elements of a single-case experimental research design that make it a true experiment: manipulation and control (including baseline observations, multiple and stable observations, and replication of treatment effects).
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A researcher conducts and independent-
measures study examining the effectiveness of
a group exercise program at an assisted living
facility for elderly adults. One group of
residents is selected to participate in the
program, and a second group serves as a
control. After 6 weeks, the research records a
combined score measuring balance and
strength for each individual. The data are as
follows:
Control Exercise
n = 10 n = 15
M = 12 M = 15.5
SS = 120.5 SS = 190.0
%3D
1. Does the exercise program have a
significant effect? Use an alpha level of .05,
two tails. Show all calculations.
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c. Calculate the test statistic
d. Evaluate the null hypothesis
2. Compute Cohens d to measure the effect
size of the treatment.
Chapter 14 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 14.1 - Describe the goal of single-case research and...Ch. 14.1 - Identify the basic elements of a single-case...Ch. 14.2 - Describe the purpose of a phase in a single-case...Ch. 14.2 - Prob. 4LOCh. 14.3 - Describe the structure of an ABAB reversal design...Ch. 14.3 - Identify the strengths and weaknesses of an ABAB...Ch. 14.3 - Explain the circumstances in which an ABAB...Ch. 14.4 - Describe the structure of a multiple-baseline...Ch. 14.4 - Identity and describe the component-analysis...Ch. 14.4 - Identify the strengths and weaknesses of a...
Ch. 14.5 - Identify the general advantages and disadvantages...Ch. 14 - Prob. 1ECh. 14 - Prob. 2ECh. 14 - Traditional statistics (means, variances, and...Ch. 14 - Prob. 4ECh. 14 - Prob. 5ECh. 14 - Prob. 6ECh. 14 - What pattern of results is needed to provide...Ch. 14 - Identify the four phases that make up an ABAB...Ch. 14 - In general, how does a phase-change design like...Ch. 14 - Explain why an ABAB reversal design is...Ch. 14 - Prob. 11ECh. 14 - Prob. 12ECh. 14 - Prob. 13ECh. 14 - How does a multiple-baseline design rule out...Ch. 14 - Suppose (hat a complex therapy procedure contains...Ch. 14 - Prob. 16ECh. 14 - Briefly explain why a clinical psychologist might...
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