Exam 14: Data Preparation

The value 1.0 represents the weighted case.

Which of the following is an option available for the treatment of missing values?

Unsatisfactory respondents may differ from satisfactory respondents in systematic ways and the decision to designate a respondent as unsatisfactory may be subjective.Both of these factors bias the results.

For multivariate statistical techniques, when there is ________, cluster analysis and multidimensional scaling can be used.

To standardize a scale X_i, we first subtract the mean, , from each score and divide by the standard error, S

When using univariate techniques, the number of samples is determined based on how the data are treated for the purpose of analysis, not based on how the data were collected.

Data derived from a nominal or ordinal scale are ________.

The data-preparation process is guided by the preliminary plan of data that was formulated in the research design phase.

For multivariate statistical techniques, when there is ________, cross-tabulation, analysis of variance and covariance, regression, two-group discriminant analysis, and conjoint analysis can be used.

When utilizing univariate techniques, for nonmetric data, when there is (are)________, chi-square, Mann-Whitney, Median, K-S, and K-W one-way ANOVA tests can be used.

When utilizing univariate techniques, for metric data, when there is (are)________, one-way analysis of variance (one-way ANOVA)can be used.

If you are counting and classifying questionnaires to determine if quotas and cell group sizes have been met, you are at the ________ step of the data-preparation process.

________ requires that the data from each respondent be analyzed separately.

If quotas or cell group sizes have not been met, additional interviews should be conducted in the underrepresented cells before the data are edited.

An important variable respecification procedure involves the use of dummy variables.

The effect of ________ is to increase or decrease the number of cases in the sample that possess certain characteristics.

If in conducting a study to determine what modifications should be made on an existing product the researcher assigns weights of 4.0 to heavy users, 3.0 to medium users, 2.0 to light users, and 1.0 to nonusers.Which group's opinion has greater importance?

Treatment of missing responses poses problems, particularly if the proportion of missing responses is more than 10 percent.

Explain the difference between univariate and multivariate techniques.

In Excel the ________ statement can be used to make a logical check.