Abstract Two-way tabulation of data when a third interacting variable is present can lead to false inferences. In this paper it is shown that the probability of an occupant fatality given a crash in a single-vehicle accident is independent of vehicle size in an aggregate data set. When the data set is partitioned into 2 occupant age groups, it is seen that both of the age groups have higher fatality rates in smaller cars. This is discussed as an example of a paradox presented by Simpson in his 1951 paper.
Simpson's paradox
An example using accident data from the state of Texas
Accident Analysis and Prevention ; 14 , 2 ; 131-133
04.08.1980
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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