Exam 13: Collecting the Data: Field Procedures and Nonsampling Error

Given $\overline{a}$ = $p_{r}\overline{a}_{r}$ = $p_{nr}\overline{a}_{nr}$ , where a is the overall mean and "r" refers to those responding and "nr" to those not responding, which of the following statements is most correct?

Methods to exclude population elements from a sampling frame due to noncoverage biases include

Which type of cheating is most detectable with normal validation procedures?

When only a few items are left unanswered, replies can be made useful by all of the following techniques, EXCEPT

In order to ensure interviewers understand the instructions of a data collection procedure, the following technique(s) can be implemented:

Which of the following is FALSE?

Nonsampling errors include

Which of the following can NOT be used to correct for the nonresponse bias introduced by designated respondents refusing their participation?

Let 1=no answer 2=not at home when contacted 3=disconnected 4=refused to participate in the study Which of them contribute to the nonresponse bias in a telephone survey?

The main source(s) of nonresponse bias is (are)

An observation error is the

Which of the following does NOT need to occur for respondents to answer questions put to them?

The most prevalent type of observation errors are

Which of the following is the most effective method to decrease respondent refusals in a mail study according to the empirical evidence?

The best way of handling duplicates when sampling from lists is to

Common strategy(ies) to correct for nonresponse bias is(are)

Noncoverage biases

Studies which have been specifically designed to estimate the direction and magnitude of data collection errors have typically

Item nonresponse can be treated by

A researcher conducting a mail survey develops a number of subgroups by noting the 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 ____.