Exam 14: Data Preparation

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Univariate techniques can be classified based on .

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

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

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Metric data are measured on a nominal or ordinal scale.

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Missing value codes should be distinct from the codes assigned to the legitimate responses.

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Which is not a part of the process of selecting a data analysis strategy?

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In , also known as across- countries analysis, the data can be aggregated for each country and these aggregate statistics analyzed.

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Univariate techniques can be classified as dependence techniques or interdependence techniques.

(True/False)
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Analysis of interobject similarity can be conducted by cluster analysis and multiple discriminant analysis.

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If you discover that a respondent has consistently checked the same response on a series of scales or that skip patterns were not followed on a questionnaire, more than likely you are participating in the step of the data- preparation process.

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are statistical techniques that attempt to group data based on underlying similarity, and thus allow for interpretation of the data structures. No distinction is made as to which variables are dependent and which are independent.

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are appropriate when one or more variables can be identified as dependent variables and the remaining are independent variables.

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is within- country analysis of international data.

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

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The following codes should be included for each respondent: project code, interviewer code, date and time codes, category codes, and validation code.

(True/False)
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Which option for the treatment of missing values involves the researcher using the respondents' pattern of responses to calculate a suitable response to the missing questions?

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Which treatment of unsatisfactory responses is desirable if (1) the number of respondents with unsatisfactory responses is small; (2) the proportion of unsatisfactory responses for each of these respondents is small; or (3) the variables with unsatisfactory responses are not the key variables?

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Square root and log transformations are seldom used in the respecification of variables.

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Dummy variables are also called all of the names below except .

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During a preliminary check for consistency, you found a respondent had reported an annual income of less than $20,000, yet indicated frequent shopping at prestigious department stores such as Saks Fifth Avenue and Neiman Marcus. You are at the step of the data- preparation process.

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