RESEARCH METHODS-W/ACCESS >CUSTOM<
5th Edition
ISBN: 9781305743625
Author: GRAVETTER
Publisher: CENGAGE C
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Textbook Question
Chapter 3, Problem 4E
A researcher evaluates a new cholesterol medication by measuring cholesterol levels for a group of patients before they begin taking the medication and after they have been taking the medication for 8 weeks. A second researcher measures quality of life for a group of 40-year-old men who have been married for at least 5 years and a group of 40-year-old men who are still single. Explain why the first researcher is probably not concerned about the validity of measurement, whereas the second researcher probably is. (Hint: What variable is each researcher measuring and how will it be measured?)
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Chapter 3 Solutions
RESEARCH METHODS-W/ACCESS >CUSTOM<
Ch. 3.2 - Define a construct and explain the role that...Ch. 3.2 - Define an operational definition and explain the...Ch. 3.3 - Define a positive relationship and a negative...Ch. 3.3 - Define the validity of measurement and explain why...Ch. 3.3 - Define the reliability of measurement and explain...Ch. 3.4 - Compare and contrast the four scales of...Ch. 3.5 - Identify the three modalities of measurement and...Ch. 3.6 - Define a ceiling effect and a floor effect and...Ch. 3.6 - Define an artifact and explain how examples of...Ch. 3 - In addition to the key words, you should also be...
Ch. 3 - Some variables, such as height, can be measured...Ch. 3 - Briefly explain what an operational definition is...Ch. 3 - A researcher evaluates a new cholesterol...Ch. 3 - A clinical researcher has developed a new test for...Ch. 3 - Suppose that a social scientist has developed a...Ch. 3 - Explain how inter-rater reliability is...Ch. 3 - A researcher claims that intelligence can be...Ch. 3 - Identify the scale of measurement that allows each...Ch. 3 - What is the primary advantage of self-report...Ch. 3 - Describe the strengths and weaknesses of...Ch. 3 - What is a ceiling effect, and how can it be a...Ch. 3 - What are demand characteristics, and how do they...Ch. 3 - Describe how the concept of participant reactivity...Ch. 3 - Select a subject and use a full-text database such...Ch. 3 - Select one construct from the following list:...Ch. 3 - For each of the following operational definitions,...
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