ecological fallacy

(redirected from Specification bias)
Also found in: Encyclopedia.

ecological fallacy

a false assumption that the presence of a pathogenic factor and a disease in a population can be accepted as proof that a particular individual is the cause of the disease.

ecological fallacy

In epidemiology, the erroneous attempt to determine an individual's specific risk of developing a disease from an analysis of the risk found in the study of a community or population.

ecological

emanating from or pertaining to ecology.

ecological biome
see biome.
ecological climax
the state of balance in an ecosystem when its inhabitants have established their permanent relationships with each other.
ecological fallacy
bias following misinterpretation that ecological factors affect all individuals equally.
ecological imbalance
the naturally occurring changes in the environment, e.g. bushfires, floods, volcanic fallout, which leave it unbalanced with respect to the type and quality of the feed they provide.
ecological interface
the border between two ecosystems.
ecological mosaic
a pattern of interspersed ecosystems.
ecological niche
1. the position occupied by an organism in relation to other organisms and to the environment.
2. a particular part of an ecological environment in which a particular plant or animal species prospers. It is the set of terms, in relation to food and water supply and relationship with predators and disease and with competitors, by which the organism achieves its full biological potential.
References in periodicals archive ?
9) Under the assumption that we do not have any specification bias generated by the implicit structure of the transport cost equation.
It should be pointed out that the approach of using a simple, two-variable framework in the causality test without considering the effects of other variables (such as import growth and investment growth) is subject to a possible specification bias.
Inflation, Specification Bias, and the Impact of Interest Rates," Journal of Political Economy, 78(6), 1970, 1325-1339.
CBB use the well-known specification bias analysis to discuss the possible effects of ignoring alternative recreation sites in the TCM demand analysis.
CBB refer to Kmenta (1971) as their econometric source for specification bias.
The use of extreme bound analysis has allowed for accounting of specification bias inherent in money demand models.
It has been shown (Heckman, 1979; Lee, 1978, 1979) that this problem of missing data on the dependent variable can be transformed into one of specification bias due to the omission from (1) of an explanatory variable.
Hence the omission of these variables may lead to a specification bias in the ultimate results.
Thus, the omission of such an important variable leads to a specification bias in the ultimate results with the consequence that standard errors of the estimates will be overestimated.

Full browser ?