Problem: Our senses of sight and smell affect our sense of taste. To evaluate taste alone, we recruit participants into a lab setting, change the lighting, and equip them with a device that affects their ability to smell. Then we have them taste several different formulas of a product and question each participant about their taste experience. In this experiment, aroma is a? Need Assignment Help?
1) dependent variable
2) none of these choices are correct
3) independent variable
4) causal experimental variable
5) covariation variable