If babies play longer with both red smooth and red fuzzy toys as opposed to both blue smooth and blue fuzzy toys), then
A) You have a main effect of fuzziness
B) You have a main effect of color
C) You have an interaction between color and fuzziness
D) Fuzziness is a confounding variable and the results can't be believed

Question

Quizplus · Accepted Answer

The preference for red toys over blue toys, regardless of texture (smooth or fuzzy), indicates a main effect of color on the babies' playtime.

If Babies Play Longer with Both Red Smooth and Red