Research Methods for the Behavioral Sciences (MindTap Course List)
6th Edition
ISBN: 9781337613316
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 4E
For a within-subjects experiment that includes a time delay between treatment conditions, explain the possible advantages and the disadvantages of increasing the time delay between one treatment and the next.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
What are the requirements for an experiment to be able to show that changes in one variable cause changes in another?
What was the independent variable in this experiment?
Here's a new idea for treating advanced melanoma, the most serious kind of skin cancer: genetically engineer white blood cells to better recognize and destroy
cancer cells, then infuse these cells into patients. The subjects in a small initial study were 11 patients whose melanoma had not responded to existing treatments
One outcome of this experiment is measured by a test for the presence of cells that trigger an immune response in the body and so may help fight cancer. Here
are data for the 11 subjects: counts of active cells per 100,000 cells before and after infusion of the modified cells. The difference (after minus before) is the
response variable.
Before
17
1
4
4
22
4
1
After
41
11
2
218
22
700
17
532
37
96
108
Difference
24
10
217
18
699
13
510
33
89
107
(a) Explain why this is a matched pairs design.
There were an even number of subjects.
All of the subjects were related.
O Half of the subjects took a placebo.
O Each subject was measured before and after treatment.
The…
Chapter 9 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 9.1 - Describe the general characteristics of a...Ch. 9.1 - Describe how time-related factors such as history,...Ch. 9.2 - For a within-subjects experiment, explain how the...Ch. 9.2 - Define counterbalancing and explain how it is used...Ch. 9.2 - Describe the limitations of counterbalancing and...Ch. 9.3 - Explain the general advantages and disadvantages...Ch. 9.3 - Define a matched-subject design and explain how it...Ch. 9.4 - Describe the different ways that within-subjects...Ch. 9 - In addition to the key words, you should also be...Ch. 9 - Describe the characteristics of a within-subjects...
Ch. 9 - Time-related factors and order effects can...Ch. 9 - For a within-subjects experiment that includes a...Ch. 9 - Under what circumstances is it advisable to switch...Ch. 9 - Describe the circumstances in which...Ch. 9 - Explain why partial counterbalancing is sometimes...Ch. 9 - Describe the problems that can be caused by...Ch. 9 - A researcher has a sample of 30 rats that are all...Ch. 9 - Explain how a matched-subjects design attempts to...Ch. 9 - Describe the disadvantages of a multiple-treatment...Ch. 9 - At the beginning of this chapter, we described a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- What is an experiment? Give two examples.arrow_forwardHere is the scenario for your Between Subjects Independent One Way ANOVA: Dr. Xena is interested in determine which type of therapy best helps persons with bipolar depression. She gathers a random and representative sample of men and women ages 18-95 years of age who have a diagnosis of Bipolar Depression who are taking Lithium for at least 6 months. She randomly assigns participants to conditions and measures well being scores after 4 months of therapy. Well being scores range from 0-100, with 100 being high well-being (feel good and experiencing no mood swings). Here is the data: Cognitive Therapy EMDR Therapy Psychoanalytical Therapy 15 72 28 78 91…arrow_forwardTwo separate samples receive two different treatments. The first treatment group (N = 9) has a mean of 50 with SS = 710. The second treatment group (N = 6) has a mean of 60 with SS = 460. Is the second treatment group significantly larger than the first? What is the effect size?arrow_forward
- Here's a new idea for treating advanced melanoma, the most serious kind of skin cancer: genetically engineer white blood cells to better recognize and destroy cancer cells, then infuse these cells into patients. The subjects in a small initial study were 11 patients whose melanoma had not responded to existing treatments. One outcome of this experiment is measured by a test for the presence of cells that trigger an immune response in the body and so may help fight cancer. Here are data for the 11 subjects: counts of active cells per 100,000 cells before and after infusion of the modified cells. The difference (after minus before) is the response variable. Before 14 24 After 41 10 217 20 701 13 532 39 96 111 Difference 27 216 18 699 508 37 90 107 (a) Explain why this is a matched pairs design. O Half of the subjects took a placebo. O Each subject was measured before and after treatment. O The subjects were paired off with each other. O There were an even number of subjects. O All of the…arrow_forwardNormal and special cause variation are managed very differently. How would you know which type you are responding to without the process limits?arrow_forwardA researcher is testing the effectiveness of an intervention for patients with type 2 diabetes and depression that focuses on increasing medication adherence compared with usual primary care. Patients randomized to the intervention group were more likely to achieve remission of depression compared with patients in the usual care group at 12 weeks (intervention 58.7% vs usual care 30.7%, p < .001). Based on this information and the information found in table 1, how would you interpret the study findings. Table 1. Baseline Characteristics of Study Population Characteristic Sociodemographic Age, mean (SD) y African American, n (%) White, n (%) Hispanic, n (%) Other, n (%) Years with diabetes, mean (SD) MMSE score, mean (SD) Usual Care (n=88) 57.1 (9.6) 48 (54.5) 36 (40.9) 3 (3.4) 1 (1.1) 12.0 (11.8) 28.2 (2.3) Intervention (n=92) 57.8 (9.4) 54 (58.7) 29 (31.5) 4 (4.3) 5 (5.4) 10.5 (1.2) 28.2 (2:3) P value .63 .30 .02 ,99 4 TRA 1arrow_forward
- A researcher wants to explore the differences in health effects from two different types of sugar. She hypothesizes that artificial sweetener has lower long term health benefits than natural sugar. She will change her methods this time... This time she will have people consume artificial sweetener for a year and measure their health benefits, and then she will have the same people consume natural sugar for the next year and measure their health benefits that year as well. What type of t-test should she use? Group of answer choices a) Paired Samples b) No answer text provided. c) One sample d) Independent Samplesarrow_forwardThe dose-response effect is best described as When the value of the response variable changes in a meaningful way with the dosage of the suspected cause when similar studies produce similar results when all other possible causes are ruled out when the suspected precedes the response variablearrow_forwardYou are a public health researcher. You want to see if the average age that a person starts smoking has changed over time. Smokers are recruited to answer a survey that asked at what age they started smoking. You divided participants into two groups, one is participants under the age of 30 and the second for participants over the age of 30. The average age for the two groups were compared. Which statistical test would be best to determine if there is a significant different in starting age between the two groups.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Probability & Statistics (28 of 62) Basic Definitions and Symbols Summarized; Author: Michel van Biezen;https://www.youtube.com/watch?v=21V9WBJLAL8;License: Standard YouTube License, CC-BY
Introduction to Probability, Basic Overview - Sample Space, & Tree Diagrams; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=SkidyDQuupA;License: Standard YouTube License, CC-BY