To Investigate Whether or Not Sending Text Messages While Driving

question 1

Multiple Choice

To investigate whether or not sending text messages while driving impacts driving ability,we had 100 participants (50 men and 50 women) drive an obstacle course under one of the following conditions: 1) no texting while driving,2) sending five text messages while driving,or 3) sending 10 text messages while driving.We measured the accuracy with which the subjects drove the obstacle course from a scale of 1 to 10 (1 = poor and 10 = excellent) .What type of study is this?

• A)An observational study that is a sample survey
• B)An observational study that is not a sample survey
• C)An experiment
• D)A matched pairs study