Independent variables are thought of as ______.

A) factors
B) repeated measures
C) a mixed design
D) a one-way ANOVA

Independent variables are also known as factors, which are the variables that are manipulated or changed by the researcher in an experiment. Therefore, option A is the correct answer. The other options (repeated measures, mixed design, one-way ANOVA) are not describing independent variables but rather statistical analyses or research designs that may involve independent variables.