Furthermore, we expanded this test of the sources of comorbidity to explore the influence of restricted fetal growth by stratifying the co-twin control study into two birth weight groups, < 2500 g and ≥ 2500 g.
Even though this type of ionizer has a widely publicized propensity for being easily poisoned, no evidence of this effect was experienced during testing of the source.
On the basis of previous studies and goodness-of-fit tests of the source water data collected in Davenport, we assumed that the average concentrations of source water for a day followed a lognormal distribution (LeChevallier et al. 2003b).
Tests of the sources of residual variation in erythrocyte lead are shown in Table 4. First, there was clear evidence of familial similarity because the model containing only nonshared environmental effects (E) was very strongly rejected when compared with any of the others.
We also tested for the source of heterogeneity using subgroup analyses.
Because the ANOVA results suggest no generalized effect of geographic origin of test sera, the source of sera are not further specified unless indicated.
To be more quantitative, we conducted an ANOVA F-test of the within-source versus between-source variations for each of the major source categories in Figures 1 and 2. The results indicated significantly greater variability (p < 0.001) across source categories than across investigators/methods (i.e., investigator/method variations were small compared with source-to-source variations).
Such missions test the ability of the source to survive the vibrations and shocks of launch and investigate how it performs and ages with the ionising radiation, vacuum and thermally demanding conditions of low Earth orbit.
Since very similar raw materials can be found at more than one source, we combine such similar sources into source areas, and test the area of the source area (AOSA) and the total area of sources within the source area (AOSISA), as two additional independent variables.
Correction: May 25 , 2003 Sunday The Crash Course column on April 27, about the Rorschach test, misstated the source of a survey of psychologists about the test and the number of people participating.
