Investopedia

How Stratified Random Sampling Works, With Examples

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
JSTOR Daily

Effect of Sampling Frames on Response Rates in the WHO MONICA Risk Factor Surveys

This is a preview. Log in through your library . Abstract Sample surveys are used to investigate occurrence and determinants of diseases in populations. Their reliability is influenced by quality of ...
Warc

Improving panel sampling: embedding propensity scores and response behavior in sampling frames

Peter Kellner has written a challenging article with the straightforward title Down With Random Samples(Kellner, 2007). His opening lines are: “We all know what perfection looks like. It is a pure ...
JSTOR Daily

Sampling Frames and Non-Response Problems in Surveys of United Kingdom Companies: A Case Study of the ESRC/DTI Survey of Management Training

The paper provides details of, and the background to, some of the results and policy implications of the ESRC/DTI survey into the extent and nature of management training. The main focus of the paper ...
The Digital Universe

Study: Free samples increase sales, work better than end-of-aisle promotions

In-store samples increase sales, both in the immediate and extended time frame. Sampling drives sharper and more sustained sales than end-of-aisle displays. If incremental cost of a sampling event ...
Investopedia

Representative Sample: Definition, Importance, and Examples

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Dr. JeFreda R. Brown is a financial consultant, ...