Underlying factors are primarily characteristics of persons and households.
As Carpenter, Just, and Shell (1990) explained after examining John Raven's personal notes, " … the description of the abilities that Raven intended to measure are primarily characteristics of the problems, not specifications of the requisite cognitive processes" (p. 408).
For the neck to be a primarily sexual characteristic, it would need to be larger in males than in females, like a fiddler crab's fiddle claw — but it isn't.
To explain primarily this characteristic behavior, we carried out (1) EEG of the red-eared turtles during the MDA treatment; (2) whole-cell recordings of brain slices; (3) examination of the actual MDA concentration in the turtle brain, and (4) analysis of the neurotransmitters by HPLC.
Length-reduced rRNA appears to be a derived, primarily metazoan characteristic: Essentially all other taxonomic groups contain roughly the same amount of rRNA as the ancestral bacterial ribosome.
It is primarily these characteristics that separate early Renaissance painting from late medieval painting in Italy.
It is likely that the size of the visual span is determined primarily by characteristics of early visual processing.
In a handful of recent studies, scholars have evaluated this trend by investigating the association of various factors, primarily personal characteristics and the built environment, with driver's licensing.
To date, work under these conditions has focused primarily on characteristics of the women being perceived and of the men doing the perceiving when accounting for variability in sexual perception.
Goodman articulates his account of the sense of depiction that has to do with the referential function of pictures in some detail: pictures are symbols in symbol systems that are devoted to denotation (although their members may have individual, multiple, or null denotation) and that have certain (primarily) syntactic characteristics.
