Exam 14: Data Preparation

How would you represent consumer preferences for frozen foods as dummy variables if the respondents were classified as heavy, medium, light, nonusers?

Computer packages like SPSS, SAS, EXCEL, and MINITAB can be programmed to identify out-of-range values for each variable and print related code information to make it easy to check each variable systematically for out-of-range values.

Give a brief overview of the data-preparation process.

Data cleaning includes consistency checks and treatment of missing responses. The checks at this stage are less extensive than the checks made during editing.

The use of dummy variables refers to a respecification procedure using variables that take on only two values, usually 0 or 1.

When utilizing univariate techniques, for metric data, when there is (are)________, the paired t test can be used.

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.

When utilizing univariate techniques, for the purpose of analysis, data pertaining to different groups of respondents, e.g., males and females, are generally treated as ________ samples while the samples are ________ when the data for the two samples relate to the same group of respondents.

At the editing stage, the researcher makes a preliminary check for consistency.

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

Write an example question and its associated coding for (1)a structured question that allows only a single response with less than nine possible choices and (2)a structured question that permits multiple responses.

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

________ involves the transformation of data to create variables or modify existing variables.

Which option for the treatment of missing values involves the researcher using only cases or respondents with complete responses for each calculation?

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

________ are suitable for analyzing data when there are two or more measurements of each element and the variables are analyzed simultaneously.

The data preparation process begins after the fieldwork is done.

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

List the procedures for statistically adjusting data and briefly discuss the uses for each.

________ require(s)responses to be recorded with a special pencil in a pre-designated area coded for that response.