Independent and Dependent Variables Kayla Observes That Textbook Publishers Use

Independent and Dependent Variables Kayla observes that textbook publishers use different methods to highlight key vocabulary terms and she questions whether this affects word recognition.She randomly assigns subjects to read the same textbook passage with key words boldfaced in black, blue, or red, in rooms with high or low illumination, and then administers a recognition test.Identify the task variable in Kayla's experiment.

A) reading ability
B) room illumination
C) text color
D) visual acuity