A study indicated that people with visible tattoos are viewe

A study indicated that people with visible tattoos are viewed more negatively than people without visible tattoos (Resenhoeft, Villa, & Wiseman, 2008). Suppose that a researcher intends to examine this phenomenon by asking participants to rate the attractiveness of women in a series of ten photographs. For one group of participants, none of the women has any visible tattoos. For a second group, however, the researcher modified one of the photographs by adding a tattoo of a butterfly on the woman\'s left arm. Using a 7-point rating scale, the n = 15 participants who viewed the photograph with no tattoo gave the woman an average rating of M = 4.9 with SS = 15.0. The n = 15 participants who saw the photograph with a tattoo gave the same woman an average rating of M = 4.2 with SS = 18.6.

a. Does the existence of a tattoo have a significant effect on the attractiveness rating of the woman in the photograph? Use a two-tailed test with a = .05.

b. Write a sentence explaining your results/interpretation. Make sure you also write it like you would in a journal article.

c. If appropriate, calculate the effect size and explain your result.

Solution

b. Write a sentence explaining your results/interpretation. Make sure you also write it like you would in a journal article.