These findings suggest that if advanced paternal age is a risk factor for BD, the strength of the relationship is small.
However, the slope of this relationship is small, accounting for 0.28 correlation value difference across the entire antennal lobe.
The magnitude of the lead IQ dose response relationship is small on a population basis and should be set against the far greater combined effect of SES status and quality of the caregiving environment.
Although detectably significant in the statistical sense, the slope of the underlying relationship is small so that for every 1-point increase in EPDS score, the odds of non-response rise only by around 4% (Odds Ratio 1.05, CI 1.03 1.07).
However, in this study, although the white cell count was significantly correlated with C-reactive protein concentrations, the magnitude of the relationship was small (r less than 15%).
However, in the present study, although the white cell count was significantly correlated with C-reactive protein concentrations, the magnitude of the relationship was small (r=10.6%).
For studies that reported between-subject correlations, the relationship was small and nonsignificant for both genders: r(23, n = 710) = .10, p = .62 for men, and r(47, n = 1,142) = −.17, p = .26 for women.
However, the sampling error of the estimates of genetic variance was high because the variation in actual relationship was small (typical standard deviation (SD) of 3.9% of the mean of 50% for human full-sibs, as expected from theory [ 5, 7- 10]).
The scale of these relationships is small.
