differential selection

[‚dif·ə′ren·chəl si′lek·shən]

(statistics)

A biased selection of a conditioned sample.

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References in periodicals archive ?

Of course, clinical sequencing applications already have to deal with this in ways such as alternative splicing (where differential selection of exons can lead to multiple mRNA and protein isoforms of a single gene) as well as various effects on expression levels.

RNA editing: when what you se(quence) isn't what you get

Specific variation in biomass allocation is well known in response to differential selection pressure.

The Scaling Relationship of Below and Above-ground Biomass of Different Grain Crops during the Seedling Stage

We do not use any of these data in this article, because the sample size is too small for meaningful distributional analysis (to observe whether the differential selection drew in different people, which then would lead to different analytical results for the Phase 2 games themselves).

Ambiguous solicitation: ambiguous prescription

And although differential selection is operative in each case, the selectivity at issue will vary.

Rescher, Nicholas. Productive Evolution: On Reconciling Evolution with Intelligent Design

The study goal was not to identify all possible cases of "true" PTSD, but to demonstrate the effects of differential selection criteria depending on how much diagnostic certainty was required by the study in question and showing variations by subgroups of interest.

Letters to the editor

Phylogenetic relationships and differential selection pressures among genotypes of dengue-2 virus.

Two lineages of dengue virus type 2, Brazil

In contrast to the earlier results, however, correcting for differential selection into full-time work reduces the penalties for gay men and eliminates the entire wage premium for lesbians--actually revealing a sizeable but insignificant penalty for married lesbians.

Wage penalties and sexual orientation: an update using the general social survey

Thus, there is considerable potential for differential selection responses between these two measures of forage yield.

Agronomic performance of timothy germplasm from forage and turf sods under two harvest managements

The same instructor taught all sections of the research methodology course, thereby minimizing any implementation threat to internal validity resulting from differential selection of instructors (Onwuegbuzie, 2003).

Role of anxiety on graduate cooperative groups

Next, following Card (1996) and Hirsch and Schumacher (1998), I estimate separate level and change models for low-, medium-, and high-skilled workers to test for differential selection bias over the observed skill distribution.

ESTIMATING THE UNION EARNINGS EFFECT USING A SAMPLE OF DISPLACED WORKERS

Differential selection along environmental gradients is expected to produce genetic clines in inherited traits, at least in species with restricted dispersal (Antonovics 1971; Hedrick et al.

The maintenance of a cline in the marine snail Littorina saxatilis: the role of home site advantage and hybrid fitness

Use ecological observations and experiments to identify (1) pairs or groups of species that have the potential to exert reciprocal effects on fitness, (2) the potential sources of differential selection on the interaction among communities, and (3) the conditions favoring coevolution.

Evaluating the dynamics of coevolution among geographically structured populations