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 3.4, Problem 7LO
Identify the three modalities of measurement and explain the strengths and weaknesses of each.
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Joy is making Christmas gifts. She has 6 1/12 feet of yarn and will need 4 1/4 to complete our project. How much yarn will she have left over compute this solution in two different ways 
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One hundred people were surveyed, and one question pertained to their educational background. The results of this question and their genders are given in the following table.
Female (F)
Male (F′)
Total
College degree (D)
30
20
50
No college degree (D′)
30
20
50
Total
60
40
100
If a person is selected at random from those surveyed, find the probability of each of the following events.1. The person is female or has a college degree. Answer:
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2. The person is male or does not have a college degree. Answer:
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3. The person is female or does not have a college degree.
Chapter 3 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 3.1 - Define a construct and explain the role that...Ch. 3.1 - Define an operational definition and explain the...Ch. 3.2 - Define a positive relationship and a negative...Ch. 3.2 - Define the validity of measurement and explain why...Ch. 3.2 - Define the reliability of measurement and explain...Ch. 3.3 - Compare and contrast the four scales of...Ch. 3.4 - Identify the three modalities of measurement and...Ch. 3.5 - Define a ceiling effect and a floor effect and...Ch. 3.5 - Define an artifact and explain how examples of...Ch. 3 - In addition to the key words, you should also be...
Ch. 3 - Hypothetical concepts, such as honesty, are...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 - For each of the following operational definitions,...Ch. 3 - In this chapter we identified four scales of...Ch. 3 - Select one construct from the following list:...Ch. 3 - Describe the relative strengths and weaknesses of...Ch. 3 - What is a ceiling effect, and how can it be a...Ch. 3 - Explain how an artifact can limit the validity and...Ch. 3 - What are demand characteristics, and how do they...Ch. 3 - Describe how the concept of participant reactivity...
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- Suppose that the weights of cereal boxes have a normal distribution with a mean of 20 ounces and standard deviation of half an ounce. A box that has a standard score of o weighs how much? syed by ilog ni 21arrow_forwardBob scores 80 on both his math exam (which has a mean of 70 and standard deviation of 10) and his English exam (which has a mean of 85 and standard deviation of 5). Find and interpret Bob's Z-scores on both exams to let him know which exam (if either) he did bet- ter on. Don't, however, let his parents know; let them think he's just as good at both subjects. algas 70) sering digarrow_forwardSue's math class exam has a mean of 70 with a standard deviation of 5. Her standard score is-2. What's her original exam score?arrow_forward
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