Statistics for Psychology
6th Edition
ISBN: 9780205258154
Author: Arthur Aron Ph.D., Elaine N. Aron Ph.D., Elliot Coups Ph.D., Cole Publishing
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 1.1HD
A father rates his daughter as a 2 on a 7-point scale (from 1 to 7) of crankiness. In this example, (a) what is the variable, (b) what is the score, and(c) what is the
a.
Expert Solution
To determine
Identify the variable.
Answer to Problem 1.1HD
The variable is level of crankiness.
Explanation of Solution
Variable:
A variable is a characteristic or a condition of the subject under study, which can take several values.
The characteristic under study is the level of crankiness of the daughter, as decided by the father.
b.
Expert Solution
To determine
Identify the score.
Answer to Problem 1.1HD
The score is 2.
Explanation of Solution
The father provided a score of 2 on crankiness to his daughter. Thus, the score is 2.
c.
Expert Solution
To determine
Identify the range of the variable.
Answer to Problem 1.1HD
The range of the variable is 1 to 7.
Explanation of Solution
The crankiness score may take values between 1 and 7, on a 7-point scale. The minimum possible value on the scale is 1 and the maximum possible value is 7. Thus, the range of the variable is 1 to 7.
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Chapter 1 Solutions
Statistics for Psychology
Ch. 1 - A father rates his daughter as a 2 on a 7-point...Ch. 1 - What is the difference between a numeric and a...Ch. 1 - Give the level of measurement of each of the...Ch. 1 - What is the difference between a discrete and a...Ch. 1 - What is a frequency table?
Ch. 1 - Why would a researcher want to make a frequency...Ch. 1 - Make a frequency table for the following scores:...Ch. 1 -
What does a grouped frequency table group?
Ch. 1 -
Why do researchers make histograms?
Ch. 1 - When making a histogram from a frequency table,...
Ch. 1 - Make a histogram based on the following frequency...Ch. 1 - How is a histogram based on a nominal variable...Ch. 1 - Describe the difference between a unimodal and...Ch. 1 - What does it mean to say that a distribution is...Ch. 1 - What kind of skew is created by (a) a floor effect...Ch. 1 - When a distribution is described as being peaked...Ch. 1 - A client rates her satisfaction with her...Ch. 1 - Give the level of measurement for each of the...Ch. 1 - A particular block in a suburban neighborhood has...Ch. 1 - Fifty students were asked how many hours they...Ch. 1 - These are the scores on a test of sensitivity to...Ch. 1 - The following data are the number of minutes it...Ch. 1 - Describe the shapes of the three distributions...Ch. 1 - Make up and draw an example of each of the...Ch. 1 - Explain to a person who has never had a course in...Ch. 1 - McKee and Ptacek (2001) asked 90 college students...Ch. 1 - A participant in a cognitive psychology study is...Ch. 1 - Explain and give an example for each of the...Ch. 1 - An organizational psychologist asks 20 employees...Ch. 1 - A social psychologist asked 15 college students...Ch. 1 - Following are the speeds of 40 cars clocked by...Ch. 1 - Here are the number of holiday gifts purchased by...Ch. 1 - Explain to a person who has never taken a course...Ch. 1 - Make up and draw an example of each of the...Ch. 1 - Raskauskas and Stoltz (2007) asked a group of 84...Ch. 1 - Mouradian (2001) surveyed college students...
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