For each of the studies described below, indicate which is the most appropriate
ID: 3360067 • Letter: F
Question
For each of the studies described below, indicate which is the most appropriate statistic that should be used to analyze the data (2 test of independence, independent t, or paired t). For each, explain why you chose the statistic that you chose.
A developmental psychologist compares 4-year-olds and 8-year olds on their level of comprehension of analogies used in stories.
The amount of oxygen consumption is measured in a group of students while listening to an audiobook and listening to relaxing music.
A researcher seeks to demonstrate a relationship between format by which participants receive news (TV or internet) and how knowledgeable they are about political issues.
A political psychologist is interested in whether the community a person lives in is related to that person’s planned vote on an upcoming ballot initiative.
A researcher seeks to determine if premarital counseling improves the quality of communication between members of a couple.
10 points
Explanation / Answer
A developmental psychologist compares 4-year-olds and 8-year olds on their level of comprehension of analogies used in stories.
Answer: t test for independent means
The amount of oxygen consumption is measured in a group of students while listening to an audiobook and listening to relaxing music.
Answer: t test for independent means
A researcher seeks to demonstrate a relationship between format by which participants receive news (TV or internet) and how knowledgeable they are about political issues.
Answer: chi square test of independence
A political psychologist is interested in whether the community a person lives in is related to that person’s planned vote on an upcoming ballot initiative.
Answer: chi square test of independence
A researcher seeks to determine if premarital counseling improves the quality of communication between members of a couple.
Answer: paired t
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