The effect of the time of day a math class is taught on test scores is being examined. Which of these is most likely to be an extraneous factor that would affect test scores? A. Color of the school hallways

The effect of the time of day a math class is taught on test scores is being examined. Which of these is most likely to be an extraneous factor that would affect test scores?

A. Color of the school hallways
B. Weather
C. Distractions in the classroom
D. Students' clothing

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