Simon Fraser University

Systematic Random Sampling

The method of systematic random sampling (METHOD=SYS) selects units at a fixed interval throughout the sampling frame or stratum after a random start. PROC SURVEYSELECT chooses the first unit randomly ...
Simon Fraser University

PPS Systematic Sampling

If you specify the option METHOD=PPS_SYS, PROC SURVEYSELECT selects units by systematic random sampling with probability proportional to size. Systematic sampling selects units at a fixed interval ...
JSTOR Daily

Relative Accuracy of Systematic and Stratified Random Samples for a Certain Class of Populations

This is a preview. Log in through your library . Abstract A type of population frequently encountered in extensive samplings is one in which the variance within a group of elements increases steadily ...
BBC

Experimental methods using quadrats and transects

When sampling a population, the numbers of organisms are counted within a sample site, and then the results multiplied to estimate the total number in the entire habitat. Large animals and plants can ...
The Hindu

What was the methodology used?

The findings presented here are from post-poll surveys conducted in Assam, Kerala, Tamil Nadu and West Bengal by the Lokniti programme of CSDS, Delhi. The surveys were conducted from March 28 to April ...