Which of the following methods offers the lowest degree of geographic flexibility?
a. telephone interview
b. door-to-door personal interview
c. Internet survey
d. mail survey
Question 2
In factor analysis, the _______________ looks for the single best factor to explain all of the variables in the data set, then it constructs a second factor that explains as much as what is left over as possible, and then a third, and so on.
a. varimax rotation method c. eigenvalue
b. principal components method d. hierarchical clustering solution