Question

A group of researchers wants to study the effect of listening to music at different volumes on driving reaction times. They recruit 100100100 volunteers.

They assign each subject a number from 111 to 100100100 and use a random number generator to assign the first 505050 subjects selected to take the driving test with one music volume. The remaining 505050 subjects are assigned to take the test with the second music volume.
What type of experiment design is this?

Answer 1

The experiment design used to study the effect of music volume on driving reaction times is a randomized control experiment, which includes random assignment of subjects to minimize bias.

Step-by-step explanation:

The type of experiment design being used by the researchers to study the effect of listening to music at different volumes on driving reaction times is a randomized control experiment. This design involves randomly assigning subjects to different groups, ensuring that each subject has an equal chance of being assigned to any group, reducing selection bias. The group that listens to one music volume acts as the experimental group, while the group listening to the other volume serves as a control or comparison group. Randomization enhances the validity of the conclusions drawn from the experiment by aiming to evenly distribute any confounding variables across the two groups.