15.34 Researching selfies and types of variables: Here are three ways to assess data related to selfies: (1) numbers of selfies taken in a month, (2) whether you took any selfies this past month, and (3) where you rank in terms of the number of selfies you took in the past month. For example, Abdul might have taken 11 selfies last month, which would mean he had taken selfies. He also may have been the 23rd most frequent selfie-taker over the last month.

a. Which of these variables could be considered a nominal variable? Explain.

b. Which of these variables is most clearly an ordinal variable? Explain.

c. Which of these variables is a scale variable? Explain.

d. Which of these variables gives us the most information about Abdul’s selfie-taking?

e. If we were to use one of these variables in an analysis, which variable (as the dependent variable) would lead to the lowest chance of a Type II error? Explain why.