7. Research indicates that color red increases men\'s attraction to women (Ellio

Question

7. Research indicates that color red increases men's attraction to women (Elliot&Niesta;, 2008). In an original study, men were shown women's photographs on either white or red background. A group of researchers decided to replicate Elliot & Niesta's (2008) study, to explore whether the effect of red will hold compared to blue. They recruited n 25 participants and asked them to rate (on a scale of 1 to 10) photographs of the same women presented first on white, then on red, and then on blue background. Which design best describes this study (between or within subject)? Is t-test an appropriate test to evaluate the hypothesis and if yes, which t-test? Explain your answer. (6 points)

Explanation / Answer

This design best describes this study as between subject. Because subject is same (women's photo) only background color changes.

Yes we can use t test here it would be appropriate

Paired t test is to be used as "The paired sample t-test, sometimes called the dependent sample t-test, is a statistical procedure used to determine whether the mean difference between two sets of observations is zero."

The paired t-test reduces intersubject variability (because it makes comparisons between the same subject)

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