Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Research Methods William G. Zikmund, Ch19

1,052 views

Published on

Research Methods
William G. Zikmund

Published in: Business
  • Be the first to comment

Research Methods William G. Zikmund, Ch19

  1. 1. BusinessResearch Methods William G. Zikmund Chapter 19: Editing and Coding
  2. 2. Stages of Data Analysis EDITING CODING ERROR CHECKING AND DATA ENTRY VERIFICATIONDATA ANALYSIS
  3. 3. Editing• The process of checking and adjusting the data – for omissions – for legibility – for consistency• And readying them for coding and storage
  4. 4. Birth Year Recorded by Interviewer • 1873? • 1973 more likely
  5. 5. Coding• The process of identifying and assigning a numerical score or other character symbol to previously edited data
  6. 6. Editing FIELD EDITINGIN-HOUSEEDITING
  7. 7. Reasons for Editing QUESTIONSCONSISTENCY COMPLETENESS ANSWERED OUT OF ORDER
  8. 8. “I Don’t Know”• Legitimate don’t know• Reluctant don’t know• Confused don’t know
  9. 9. Codes• The rules for interpreting, classifying, and recording data in the coding process• The actual numerical or other character symbols
  10. 10. 1a. How many years have you been playing tennis on a regular basis? Number of years: __________ b. What is your level of play?Novice . . . . . . . . . . . . . . . -1 Advanced . . . . . . . -4Lower Intermediate . . . . . -2 Expert . . . . . . . . . -5Upper Intermediate . . . . . -3 Teaching Pro . . . . -6 c. In the last 12 months, has your level of play improved, remained the same or decreased?Improved. . . . . . . . . . . . . . -1 Decreased. . . . . . . -3Remained the same . . . . . -2
  11. 11. 2a. Do you belong to a club with tennis facilities? Yes . . . . . . . -1 No . . . . . . . -2 b. How many people in your household - including yourself - play tennis? Number who play tennis ___________3a. Why do you play tennis? (Please “X” all that apply.) To have fun . . . . . . . . . . -1 To stay fit. . . . . . . . . . . . -2 To be with friends. . . . . . -3 To improve my game . . . -4 To compete. . . . . . . . . . . -5 To win. . . . . . . . . . . . . . . -6 b. In the past 12 months, have you purchased any tennis instructional books or video tapes? Yes . . . . . . . -1 No . . . . . . . -2
  12. 12. 4. Please rate each of the following with regard to this flight, if applicable. Excellent Good Fair Poor 1 2 3 4 Courtesy and Treatment from the: Skycap at airport . . . . . . . . . . . . . . Airport Ticket Counter Agent . . . . . Boarding Point (Gate) Agent . . . . . Flight Attendants . . . . . . . . . . . . . . Your Meal or Snack. . . . . . . . . . . . . Beverage Service . . . . . . . . . . . . . . Seat Comfort. . . . . . . . . . . . . . . . . . Carry-On Stowage Space. . . . . . . . Cabin Cleanliness . . . . . . . . . . . . . Video/Stereo Entertainment . . . . . . On-Time Departure . . . . . . . . . . . .
  13. 13. “I believe that people judge yoursuccess by the kind of car you drive.” Strongly agree 1 Strongly agree +1 Mildly agree 2 Mildly agree +2 Neither agree Neither agree nor disagree 3 nor disagree 0 Mildly agree 4 Mildly agree -1 Strongly disagree 5 Strongly disagree -2
  14. 14. Rules for Coding• Categories should be exhaustive• Categories should be mutually exclusive and independent
  15. 15. Coding Open-Ended Responses
  16. 16. Code Book• Identifies each variable• Provides a variable’s description• Identifies each code name and position on storage medium
  17. 17. Data Entry• The process of transforming data from the research project to computers.• Optical scanning systems – Marked-sensed questionnaires
  18. 18. Recode• Recoding is the process of using a computer to convert original cods used for raw data to codes that are more suitable for analysis.• Var1 = 8 - Var1
  19. 19. Error Checking and Verification• Data cleaning

×