Reserve Clusters

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February 22, 2016 at 6:08 am #2091

josephnkosa
Participant

We are in the process of doing a SMART survey in my country of operation though the methodology is not commonly used here. After selection of sub-districts to visit by the consultant, I noticed some clusters are denoted as RC , why is this so?

February 29, 2016 at 9:17 pm #2111
SMART
Keymaster
Number of clusters = total number of households in the sample/number of households one team is able to visit per day

In order to determine the number of clusters in a survey, you must determine the number of households a team can feasibly visit in one day.

However, in the event surveyors are prevented from accessing previously selected clusters after survey starts (for unforeseen circumstances), ENA automatically chooses additional clusters called reserve clusters or replacement cluster (RC).

Please note, only use RC when 10% or more of the original number of clusters were impossible to reach OR final sample size is less than 80% of the required number.

Example
If your target is to survey 40 clusters, but:
A. You could only access 38 clusters (5% missing), you do not use the RC.
B. You could only access 36 clusters (10% missing), you should include all RC in your survey, even there are 5 of them.
- This reply was modified 10 years, 2 months ago by SMART.
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