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Direct observation is most preferred because it allows first hand data collection in a natural setting as used in prospective cohort studies in Nigeria and Brazil [ 40, 41].
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This study used second-hand data.
Findings were consecutively discussed between all first-hand data collectors.
Of the 125 overweight children from the first data collection (T1), 80 (64%) participated in the second data collection.
In women with recurrent second trimester deliveries, data collection continued until a first third trimester delivery.
First, data collection and analysis is carried out simultaneously.
In our study the response effort associated with hand hygiene data collection in a hospital setting was manipulated using an altered data collection tool.
Data collection for the control group was completed first, followed by data collection for the other 2 groups.
First, data collection was retrospective.
First, data collection relied on self-reporting.
First, we limited data collection to one Chinese province.
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