Agricultural data collection procedures
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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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Agricultural Data Collection Procedures

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Agricultural data collection procedures

Agricultural Data Collection Procedures

Section B

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.


  • 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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