Chapter 18 m303 final

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Author:
jodiesc08
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214968
Filename:
Chapter 18 m303 final
Updated:
2013-04-21 23:39:11
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m303 final
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m303 final chapt 18
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  1. involves the inspection and, if necessary, correction of each questionnaire or observation form
    Editing
  2. a preliminary edit designed to detect the most glaring omissions and inaccuracies in data

    ÊCompleteness

    ÊLegibility

    ÊComprehensibility

    ÊConsistency

    ÊUniformity
    Stage one: Field edit
  3. aka "eyeball" edit - thorough and exacting scrutiny and correction of completed data collection forms, including a decision about what to do with the data

    ÊTo convert all responses to
    consistent units

    ÊDegree of nonresponse

    ÊWhere possible, for consistency
    across responses

    ÊFor evidence that respondent
    wasn’t really thinking about answers

    ÊTo add any needed codes
    Stage two: Central -Office Edit
  4. ÊThe process of transforming raw
    data into symbols (usually numbers) that can be utilized for analysis

    ÊTransforming responses to each
    question into a set of meaningful categories

    ÊAssigning numerical codes to the
    categories

    ÊCreating a data set suitable for
    computer analysis - may need to transform raw variables
    Coding
  5. An error that arises during
    editing, coding or data entry

    usually due to
    researcher carelessness
    Blunders
  6. Two types of outliers
    Errors and Legitimate but extreme values
  7. Logically inconsistent responses and should be corrected
    Errors
  8. Decisions must be made as to how to handle these extreme coded values given by respondents
    Legitimate but extreme values
  9. Alternatives to handling missing data
    • §Leave the Items Blank and Report
    • the Number of Missing Cases as a Separate Category

    • §Eliminate the Case with the
    • Missing Items from All Further Analyses

    • §Eliminate the Case with the
    • Missing Items from Analyses Using the Variable

    • §Substitute Values for the Missing
    • Items

    §Contact the Respondent Again

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