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A psychologist is interested in attitudes towards the disabled. She believes tha

ID: 3078185 • Letter: A

Question

A psychologist is interested in attitudes towards the disabled. She believes that contact with someone who is disabled might have an effect on peoples' attitudes. To test her hypothesis, she measured attitudes toward the disables both before and after contact with an individual in a wheelchair. What type of statistical test should she use to determine if contact with a disabled person changes peoples' attitudes toward the disabled? Pearsons Correlation Coefficient (r)Regression Analysist-test for Independent Meanst-test for Correlated Means (aka Paired t-test)

Explanation / Answer

Since we are testing the same people before and after contact with a disabled person, the Paired t-test is the most appropriate tool to use. (The "matched pair" being the individual before exposure and the same individual after exposure to a disabled person)

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