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[Filtered] Method of Back-check/Control

voxdash question
[Filtered] Method of Back-check/Control
Results
2017-12-03
Direct supervision
0%
Audio recording review by supervisor
0%
Back-check by telephone by supervisor or the central office
0%
Not subject to back-check
0%
listening to audio
100%
Sample size
1,500
Sample size calculated by VoxDash
47
Probability sampling
Margin of error
±3%
Margin of error (calculated by VoxDash)
±14.29%
Calculated by VoxDash
Data provider
General population
Respondent qualification age
18
Data sampling
Probability sampling
Coverages
National
Main graphics
Pie chart

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