EXERCISE 3.2: SCALING ITEMS OBJECTIVE: To practice scaling items.

Using the data from the “Bus Driver.sav” data set described in Appendix B, scale the 10 task items on the three dimensions of “Frequency,” “Relative Time Spent,”

and “Importance.” Use Table 3.1 to fill in the mean task ratings across the three dimensions. In order for an item to be “retained” for further consideration, the task must, on average, be carried out at least “regularly” (i.e., 3.0 or higher) in terms of frequency, fall between “little” and “moderate” (i.e., 2.5 or higher) in terms of relative time spent, and be rated as “very important” (i.e., 4.0 or higher)
in terms of importance. Given these criteria, which of the 10 tasks meet all three of these criteria and, thus, should be retained?