a. Ask respondent to complete a simple task at the beginning.
b. Offer respondents money for cooperation.
c. Use a good quota sampling plan.
d. a and b.
e. a, b, and c.
and “nr” to those not responding, which of the following statements is most correct?
a. Both ar and anr can be calculated by splitting up a (which is known or can be
estimated) into its component parts.
b. The nonresponse component can be ignored as it is reasonable that ar equals anr.
c. a cannot be calculated because of the difficulty in estimating ar and anr.
d. A rough estimate of a can be made by adjusting the initial results after a is
estimated by follow-up.
e. A rough estimate of a can be made by adjusting the initial results after anr is
estimated by follow-up.
order of those responding: e.g., group 1, those responding after initial contact; group
2, those responding after first follow-up, etc. Statistics are then computed to see if
there are any significant differences between the groups. If there is no significant
trend the mean for the nonrespondents and respondents is ___. If there is a
significant difference the researcher ____.
a. biased; scraps the project and starts all over again
b. assumed the same; extrapolates to allow for the respondents
c. assumed equal; assumes the nonrespondents are like the respondents
d. assumed different; extrapolates to allow for the nonrespondents
e. assumed equal; extrapolates to allow for the nonrespondents
magnitude of data collection errors have typically
a. relied on the actual availability of bias-free information which then served as a
validity check.
b. used split-run comparisons.
c. measured the consistency of replies over time from the same respondent.
d. been applied in substantive as opposed to method studies.
e. allowed the information gained to be taken at face value.
a. inferring the information for the missing item from other information in the
questionnaire.
b. using regression analysis.
c. substituting the average response for the item of those who did respond.
d. all of the above.
e. none of the above.