In business, employees are often asked to perform a complex task when their attention is divided. Human Factors published a study designed to determine whether video game players are better than non-video game players at multi-tasking. Each in a sample of 60 college students was classified as a video game player or a non-video game player. Participants entered a street crossing simulator and were asked to cross a busy street at a unsigned intersection. The simulator was designed to have cars traveling at various high rates of speed in both directions. During the crossing, the students also performed a memory task as a distraction. Two variables were measured for each student: 1: a street crossing performance score, and 2 a memory task score. The researchers found no difference in either the street crossing performance or the memory task score of video game players and non-games. "These results," say the researchers, "suggest that action video game players [and non-gamers] are equally susceptible to the costs of dividing attention in a complex task". Required:
a. Identify the experimental unit for this study.
b. Identify the variables measured as quantitative or qualitative.
c. Is this an application of descriptive statistics or inferential statistics? Explain.