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Describe the process of data validation.

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The purpose of data validation is to det...

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In order to establish valid percentages, missing responses must be removed from the calculation.

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A one-way frequency table shows the number of respondents who answered each possible response to a question given the available alternatives.

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Which of the following measures is an indicator of how similar or dissimilar the numbers are in a set of responses?


A) Average
B) Mean
C) Median
D) Mode
E) Standard deviation

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What is the difference between a one-way tabulation and a cross-tabulation?

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A one-way tabulation shows responses for...

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Which of the following is the last step in the data preparation process?


A) Data validation
B) Data editing
C) Data coding
D) Data entry
E) Data tabulation

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Which of the following measures requires that the responses be first arranged in a hierarchical pattern?


A) Average
B) Mean
C) Median
D) Mode
E) Standard deviation

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Which of the following statements is True of the fourth step in the data coding process, where a coded value is assigned to each response?


A) It follows the data entry phase of data preparation.
B) It is the step where omissions are either coded or left out.
C) It is necessary if an optical scanning approach is used to enter data.
D) It is tedious because it is done manually.
E) It precedes the data validation phase of data preparation.

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Some data colΒ­lection methods require activities in all stages, while other methods involve only limited data preparation.

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Which of the following is True of data editing?


A) Before being validated, data must be edited for mistakes.
B) Editing determines whether a survey's interviews or observations were conducted correctly and are free of fraud or bias.
C) Editing involves checking data for mistakes made by the interviewer but not by the respondent.
D) In order to speed through the data collection process, an interviewer may edit the data collection process.
E) As part of the editing process, the researcher will check to make sure all respondents were asked the proper questions.

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Discuss the advantages of one-way tabulations.

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One-way tabulations serve several purpos...

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Which of the following is the first step in the data preparation process?


A) Data validation
B) Data coding
C) Data editing
D) Data entry
E) Data tabulation

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A coded value can be rejected if it is too large or too small for a particular scaled item on a questionnaire.

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The first step in error detection is to:


A) reject an error value when it is very large or very small for a particular scaled item on the questionnaire.
B) determine whether the software used for data entry performs "error edit routines" that identify the wrong type of data.
C) categorize the number of errors in two or more questions, thus showing the relationship between those two variables.
D) determine the amount of nonresponse to individual questions.
E) identify the number of respondents who did not answer various questions on the questionnaire.

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The most recommended approach to dealing with missing data is to use the mean of the entire sample that answered the question as a replacement value.

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Cross-tabulation is most often used with nominal or ordinal scaled data.

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Codes must be assigned to facilitate quantitative data analysis only after responses are reviewed and themes and common words and patterns are identified.

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The two types of measures often used to describe data are quantitative and qualitative measures.

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Cross-tabulation is the most effective way to categorize single variables existing in a study.

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Missing data may occur when a respondent simply does not see a question, or is in a hurry to complete the survey and simply skips a question.

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