Related Experiment Video
Updated: Sep 29, 2026

Swabbing the Urban Environment - A Pipeline for Sampling and Detection of SARS-CoV-2 From Environmental Reservoirs
Published on: April 9, 2021
The Sample Registration System: an innovative system for monitoring demographic dynamics
Abstract:
"The International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR,B) has been at the forefront of the development of longitudinal systems for demographic surveillance. The Demographic Surveillance System from the Matlab study area is internationally recognized as a unique source of accurate and complete demographic data for a large rural population within a developing setting. In this paper, an overview is presented of a second demographic surveillance system--the Sample Registration System (SRS)--which has been in operation for six years in two other areas of rural Bangladesh." Fertility and mortality rates for the period 1983-1988 are calculated from the SRS data.
Related Concept Videos
Systematic Sampling Method
Systematic sampling is one of the simplest methods...
Sample Proportion and Population Proportion
Data Collection by Observations
An astronomer viewing the motion and brightness of stars in the sky and recording the data is an example of observational data collection. A botanist recording...
Stratified Sampling Method
To choose a stratified sample, divide the population into groups called strata and then take a...
Sampling Plans
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Cluster Sampling Method
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
