Simons and Chabris (1999) Asked Participants to Watch a Video

Multiple Choice

Simons and Chabris (1999) asked participants to watch a video that shows three people wearing white T-shirts, passing a basketball, and three people wearing black T-shirts, passing another basketball.They found that ______.

A) participants could not detect one basketball if they were tracking the other one
B) attention could be divided as long as the uniforms being worn were achromatic
C) attention could be divided and almost all participants noticed a cheerleader walking through the scene
D) nearly half of the participants failed to notice a person in a gorilla suit walking through the scene