Exam 14: Data Preparation

Respondents have been asked to express their degree of agreement with a series of lifestyle statements on a 1-to-5 scale,assuming that 9 has been designated for missing values,data values of 0,6,7,and 8 are out of range.Where in the data-preparation process might any out-of-range data be caught?

________ involves transferring the coded data from the questionnaires or coding sheets onto disks or magnetic tapes,or directly into computers by keypunching.

In interdependence techniques,the variables are classified as dependent or independent.

Univariate techniques can be classified based on whether the data are metric or nonmetric.

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?

________ utilizes questions that appear on a computerized gridpad.The responses are recorded directly into the computer using a sensing device.

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

Missing responses represent values of a variable that are unknown,either because respondents provided ambiguous answers or their answers were not properly recorded.

Ethical issues that arise during the data preparation and analysis step of marketing research process pertain mainly to the researcher.

When utilizing univariate techniques,for metric data,when there is (are)________ the z test and the t test 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.

Analysis of interobject similarity can be conducted by cluster analysis and multiple discriminant analysis.

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

Univariate techniques can be classified based on ________.

The value 1.0 represents the weighted case.

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?

Unlike traditional data collection,in social media respondents do not merely respond to questions or stimuli.Rather,they generate the data and edit it by their communal participation.

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.

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