there is some evidence that people with a visible tattoo are considered to be more attractive than are people without a visible tattoo. Eilish, Styles, and Ricch (2019) showed one group of students a color photograph of a 23 year old man with a tattoo of a shark on his arm. A second group of students was shown the same photograph but with the tattoo removed. Each participant was asked to rate the attractiveness of the man in the photograph.

what is the independent variable ?

what is the dependent variable?