Exam 14: Data Preparation

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

(True/False)
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Which of the following is an option available for the treatment of missing values?

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The major multivariate technique for examining ________,is factor analysis.

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Data that are interval or ratio in nature are ________.

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The general rule for respecifying categorical variables with K categories is that K dummy variables are needed.

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Within-country analysis is also referred to as intercultural analysis.

(True/False)
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In Excel the ________ statement can be used to make a logical check.

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Which option for the treatment of missing values involves cases,or respondents,with any missing responses being discarded from the analysis?

(Multiple Choice)
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For multivariate statistical techniques,when there is ________,multivariate analysis of variance and covariance and canonical correlation,and multiple discriminant analysis can be used.

(Multiple Choice)
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When respecifying a categorical variable with K categories,only K - 1 dummy variables are needed because only K - 1 categories are independent.

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If the researcher uses the mean response for the missing value,he/she is using which option for the treatment of missing values?

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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.

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Which treatment of unsatisfactory responses is desirable if (1)the unsatisfactory respondents do not differ from satisfactory respondents in obvious ways responses on key variables are missing?

(Multiple Choice)
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Univariate techniques can be classified based on ________.

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When utilizing univariate techniques,the samples are ________ if they are drawn randomly from different populations.

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Explain the difference between univariate and multivariate techniques.

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

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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.

(Multiple Choice)
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SPSS Missing Values Analysis can assist in diagnosing missing values and replacing missing values with estimates.The missing values can also be treated within the context of the SPSS Base module.

(True/False)
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In ________,each case or respondent in the database is assigned a weight to reflect its importance relative to other cases or respondents.

(Multiple Choice)
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