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).
And although differential selection
is operative in each case, the selectivity at issue will vary.
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.
To minimize any implementation threat to internal validity resulting from differential selection
of instructors (Onwuegbuzie, 2003), the same instructor taught all sections of the research methodology course.
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).
Sweeney and Danneberger (1995) favored the explanation that fairway clones had diverged becaue of differential selection
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.
Furthermore, at least some species seem to respond to differential selection
regimes through phenotypic plasticity rather than by genetic differentiation in phenotypic traits (Appleton and Palmer 1988; Palmer 1990; Gibbs 1993).
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.
Such systematic differences in behavior may also serve as the basis for differential selection
in the context of an ecological process.
Values for differential selection
in FHB resistance have not been previously reported.
conclude that SSD will evolve most rapidly when differential selection
pressures and variance dimorphism favoring the same direction of response are found.