Key points are not available for this paper at this time.
Efforts to minimize the severity of these problems have resulted in methodological inquiries covering a wide range of variables. Most studies have tested the effectiveness of certain variables in minimizing the nonresponse problem 1, 5, 6, 7, 8. A fewer number have extended the analysis to test the effectiveness of similar variables in minimizing item omission and response slowness 2, 4. Even less attention has centered on whether two or more simultaneously applied variables significantly interact in their effects on any of the above problems.
Houston et al. (Sat,) studied this question.