A researcher thinks that the color red increases attraction. She randomly assigns each participant to view the same person in either a red or blue shirt, and then rate that person's attractiveness from 1-10. She also thinks that people's level of sociosexuality (i.e.. how much someone thinks about sex) could influence the results, so she measures that on a questionnaire scored 1-100 (with higher being more sociosexual). Clearly define the IVs, PVs, and DVS. For each variable, specify the level of measurement.