In this article, the independent variable is (are) the Group of answer choices social pressure (One confederate versus four confederates) color of clothing worn by the confederates (black versus white) type of questions (conformity versus non-conformity)

Color of clothing worn by the confederates [Black versus White].

Explanation:

The independent variables are those whose presence is not dependent on any event or other variable. These variables are independent and are not effected by change in other variable. In the given statement the independent variable is the clothes worn by the two people. They can wear any color and this is not dependent on any other factor.

there is an explationation of this on a site called crash   course world history 1

answer; analytical,creative and practical;