Sentence examples for by cluster sampling and from inspiring English sources

Two classes were chosen randomly by cluster sampling and assigned to experimental (n=40) and control group (n=40).

Models accounted for correlated observations within the school caused by cluster sampling and sampling stratification by geographical strata.

Models accounted for correlated observations within the school caused by cluster sampling and pupil sampling weights as well as sampling stratification by geographical strata.

Sample was selected by cluster sampling method and it was put into two experimental and control groups.

Healthy individuals were selected for demographic and behavioural characteristics by stratified cluster sampling and blood tested for hepatitis B surface antigen (HBsAg), antibody to HBV core antigen (anti-HBc), and anti-HCV antibodies (anti-HCV).

A total of 2,044 medical records in 10 township hospitals were collected from five counties in Midwestern China by stratified cluster sampling and evaluated using the Appropriateness Evaluation Protocol (AEP), which was developed by a Delphi expert consultation of 32 experts.

A cross-sectional study was conducted on 308 children aged 12 years, and their mothers were randomly selected by cluster sampling (primary schools).

Sample randomization was obtained by cluster sampling in two stages, in which schools were the primary sampling unit and children were randomly selected from each school as a second stage.

One hundred and five teachers were selected by cluster sampling.

Respondents were selected by cluster sampling technique.

Participants were selected by cluster sampling.