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Agricultural Data Collection Procedures. Section B. Quality Control Tools. Listing sheet controls Interviewer observations Formal / Informal reviews Reinterview Address listing QC. Listing Quality Control Tools. Dependent Quality Control, including: Advance listing Suppression

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Presentation Transcript
quality control tools
Quality Control Tools
  • Listing sheet controls
  • Interviewer observations
  • Formal / Informal reviews
  • Reinterview
  • Address listing QC
listing quality control tools
Listing Quality Control Tools

Dependent Quality Control, including:

  • Advance listing
  • Suppression

If errors are found, choices include:

  • Listing mistakes corrected
  • Re-list enumeration area
dependent quality control
Dependent Quality Control
  • Supervisor or another enumerator checks a sample of the listing.
  • Copy listing information for select units without enumerator knowledge.
  • Review a randomly chosen area to verify coverage, check for omissions and completeness.
other listing quality control tools
Other Listing Quality Control Tools

Advance Listing

  • Supervisor lists sample before enumerator
  • Compare work when enumerator completes the sample section.

Suppression

  • Enumeration units are removed from listing
  • Supervisor checks for enumerator updating of suppressed (omitted) units
interviewer observations
Interviewer Observations
  • Supervisor watches enumerator work
  • Does not interact to minimize bias
  • Makes notes during observation
  • Provides feedback after observation
interviewer observations1
Interviewer Observations
  • Assess effectiveness of training
  • Ensure enumerators can do their work
  • Provides continuous feedback
  • Corrective actions may be needed
formal informal reviews
Formal / Informal Reviews

What are the goals of reviews?

  • To ensure the quality of the data collected on forms and questionnaires
  • To ensure interviewers and clerks understand and follow procedures for completing forms and questionnaires
informal reviews
Informal Reviews
  • Supervisor reviews enumerator forms during enumeration
  • Check for legibility, completeness and accuracy
  • Provide feedback
  • Repair errors
formal reviews
Formal Reviews
  • Conducted by field office staff upon completion of EA
  • Provides check of supervisory work
  • Repair errors or return to field where necessary
random reinterview
Random Reinterview
  • Another field staff member interviews an enumeration unit after enumerator
  • Finds same respondent and completes new questionnaire
  • Questionnaires are compared to verify content
random reinterview sample
Random Reinterview Sample
  • Supervisor takes simple random sample from each enumerator’s workload
  • Above supervisory level uses two-stage sample:
    • Sample of enumerators in their area
    • Sample of enumeration units from those enumerators
reinterview errors
Reinterview Errors
  • Falsification (release interviewer)
  • Interviewer error (retraining/feedback)
  • Respondent error (no action)

Rework may be necessary for falsification or other serious errors

administrative reinterview
Administrative Reinterview
  • Accumulates data on work characteristics for all interviewers
    • Vacant enumeration units
    • Partial interviews
    • Enumeration units by type/location
    • Deleted enumeration units
    • Average size per enumeration unit
administrative reinterview1
Administrative Reinterview
  • Provides a more targeted and informed approach to identifying outliers
  • Does not replace other reviews
  • Management tool and provides organizational operational data
administrative reinterview2
Administrative Reinterview
  • Compile data for all enumerators
  • Compare individual data to compiled data
  • Note areas of variance for investigation
  • Could be that individual is performing better than group
administrative reinterview actions
Administrative Reinterview Actions
  • Cannot take corrective action without investigation
  • Increase suspect enumerator reviews:
    • Informal/formal review
    • Reinterview
supplemental reinterview
Supplemental Reinterview
  • Purposeful selection of a particular enumerators work for reinterview
  • Supervisor selects sample size
    • Ensure quality
    • Avoid over-sampling
supplemental reinterview1
Supplemental Reinterview
  • Means for checking work of selected enumerators
  • Especially useful for suspected falsification
  • Should be stopped once quality is of acceptable level
section b quiz
Section B Quiz
  • What are the five quality control tools available for data collection operations?
  • What are three listing quality controls?
  • Explain how to conduct interviewer observation.
  • Name the three types of reinterviews that can be used to assess the content and quality of data collection.
  • Is falsification a serious problem? Yes or No
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