✦ LIBER ✦

Two issues concerning the analysis of grouped data

✍ Scribed by S. Selvin

Publisher: Springer
Year: 1987
Tongue: English
Weight: 318 KB
Volume: 3
Category: Article
ISSN: 0393-2990
DOI: 10.1007/bf00149737

No coin nor oath required. For personal study only.

✦ Synopsis

Simple statistical models are used to illustrate two important issues arising in the analysis of grouped data. The consequences are explored of grouping continuous data and analyzing the resulting contingency table. Specifically, an expression for the loss of porter is derived when and odds ratio is used to assess risk measured by a continuous variable. Also explored are the consequences of employing correlation and regression coefficients to analyze summary variables derived from grouped data (ecologic data). An expression is given that demonstrates the magnitude of a bias (ecologic fallacy) resulting from analyzing a specific type of grouped data.

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