Exact(5)
A clustered sample procedure was used to select the participants.
A randomised cluster sample procedure was used to select the sample.
A stratified random sample procedure was implemented for NHWS so that the final sample was representative of the demographic composition of the adult US population.
Firstly, a stratified consecutive sample procedure was used to select a representative sample of participants from three different road user categories: car occupants, cyclists, and pedestrians (falls, non-vehicle injuries).
The procedure was repeated for the rural EAs by adding all the EAs in the selected districts and weighted from the first stage together after which a simple random sample procedure was adopted to select the total number of rural EAs (15) required for the study.
Similar(55)
A two-stage sampling procedure was adopted in the study.
The sampling procedure was optimized by face-centered central composite design (FC-CCD).
A multi-stage sampling procedure was used.
A two-stage sampling procedure was used.
To collect a representative sample, a stratified and clustered random sampling procedure was employed.
In selecting the sample households for the survey, a multistage sampling procedure was employed.
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