2.24. You are directing a study to determine the factors that relate to good academic performance at your school.

(a) Describe how you might select a sample of 100 students for the study.

(b) List some variables that you would measure.

For each, provide the scale you would use to measure it, and indicate whether statistical analysis could treat it as (i) categorical or quantitative, (ii) nominal, ordinal, or interval,

(iii) continuous or discrete.

(c) Give an example of a research question that could be addressed using data on the variables you listed in (b).