Question

(1 point) An experiment investigated the effect of length and repetition of TV ads on students choosing to eat at Del Taco. All 60 students watched a 40-minute television program that included ads for Del Taco. Some students saw a 30-second commerical; others a 90-second commerical. The same commerical was shown either 1, 3, or 5 times during the program. After the viewing, each student was asked to rate their craving for Del Taco on a scale of 0 to 10 What are the levels of the length factor? A. 40-minute television program B. craving for Del Taco on a scale of 0 to 10 C. 30-second and 90-second commericals D. 60 students E. 1, 3, or 5 commercials during the 40-minute television program
Please help, will give thumbs up for correct answer! These are both closely related.

Answer 1

1)levels of length are 30 second and 90 second commercial option C is correct

2)number of treatments =3 (1,3, or 5 times commercials)