Question

A student wants to see if using a cell phone before going to bed affects how long it takes to fall asleep. Thestudent set up an experiment with three groups of students: Group A, Group B, and Group C. Group A did not

use a cell phone before bed. Group B used a cell phone only to listen to music. Group C used a cell phone to view social media before bed. All the students in the groups were 15 years old. All the students in the groups
were scheduled to go to bed at the same time (10:00pm). All students in the groups ate dinner at the same
time, and ate the same kind of food.
• Identify IV and DV in the experiment
o IV:
o DV:
• Identify at least two constants in this experiment:
o Constants:
• What is the control group in this experiment?
o Control:

Answer 1

a CELL phone well because you might be on it all night

Answer 2

Group B and C were control group

and The music and social media was the constants