Research Methods for the Behavioral Sciences (MindTap Course List)
6th Edition
ISBN: 9781337613316
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Cengage Learning
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Textbook Question
Chapter 8.5, Problem 7LO
Describe how differential attrition and communication between participants can threaten the internal validity of between-subjects designs and identify these problems when they appear in a research study.
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Chapter 8 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 8.1 - Describe, compare, and contrast the defining...Ch. 8.1 - Explain the general advantages and disadvantages...Ch. 8.2 - Define individual differences and explain how...Ch. 8.3 - Identify the three primary techniques for limiting...Ch. 8.4 - Describe how individual differences influence...Ch. 8.4 - Identify the options for reducing or controlling...Ch. 8.5 - Describe how differential attrition and...Ch. 8.6 - Describe how between-subjects designs are used to...Ch. 8 - In addition to the key words, you should also be...Ch. 8 - At the beginning of this chapter (p. 186) we...
Ch. 8 - In a between-subjects design, each individual...Ch. 8 - A researcher has a sample of 30 rats that are all...Ch. 8 - Briefly explain how a participant characteristic,...Ch. 8 - Explain the advantages and disadvantages of using...Ch. 8 - A recent survey at a major corporation found that...Ch. 8 - Describe how individual differences can produce...Ch. 8 - Explain how holding a participant variable such as...Ch. 8 - Describe some of the problems that can arise when...Ch. 8 - Describe the advantages of a two-group design...Ch. 8 - Identify the advantages of a multiple-group design...
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- The article "Americans are 'Getting the Wrong Idea' on Alcohol and Health"† reported that observational studies in recent years that have concluded that moderate drinking is associated with a reduction in the risk of heart disease may be misleading. The article refers to a study conducted by the Centers for Disease Control and Prevention that showed that moderate drinkers, as a group, tended to be better educated, wealthier, and more active than nondrinkers. Explain why the existence of these potentially confounding variables prevents drawing the conclusion that moderate drinking is the cause of reduced risk of heart disease. (Select all that apply.) a. Someone who is more active is more likely to avoid healthier food. b.Someone who is more active is more likely to seek out healthier food. c. Someone who is wealthier is more likely to purchase healthier food. d.Someone who is educated is more likely to seek out healthier food. e.Someone who is educated is more likely to not be aware…arrow_forwardWhat is the “third factor” problem concerning correlational studies as it relates to inferring causation?arrow_forwardHow does the AQL relate to producer’s risk () and theLTPD relate to consumer’s risk ()?arrow_forward
- How could the survey type of study be helpful in arriving at solutions to the crime problem in large cities like Lahore and Karachi?arrow_forwardExplain how using college students as participants in a study may limit the external validity of a study’s research findings.arrow_forwardWhat can we do if we find weak instruments while Checking Instrument Validity?arrow_forward
- It is desired to investigate whether there is a relationship between gender and occupational groups. Which method is appropriate for this research? Please explain with reason.arrow_forwardA sociologist recorded the number of contacts entered in a cell phone and the number of texts sent in a week for 20 cell phone users. The resulting data were used to conduct a hypothesis test to investigate whether there is a linear relationship between the number of contacts and the number of texts sent. What are the correct hypotheses for the test?arrow_forwardSpencer would like to study how gender and PTSD in veterans impacts risk for dementia. In order to study this, he will need four groups and all four groups will have to be veterans. Females with PTSD, females without PTSD, Males with PTSD, Males without PTSD. What would be the best statistical test to examine how gender and PTSD status impact risk for dementia in this cohort?arrow_forward
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