The phrase "a relative difference in" is correct and usable in written English.
You can use it to compare and contrast two similar things, related to the same subject. For example, “We observed a relative difference in the success rates of our two marketing strategies.”.
Such a relative difference in the system probabilities of failure associated with different copulas increases greatly with decreasing component probability of failure.
The Pulfrich effect is a psychophysical phenomenon wherein lateral motion of an object in the field of view is interpreted by the visual cortex as having a depth component, due to a relative difference in the signal timings between two eyes.
A CF is a relative difference in frequency for which the signal x t) spectrally correlates with itself, (S_{x}^{alpha }(f) neq 0), begin{aligned} S_{x}^{alpha}(f) = & {lim}_{Ttoinfty} {lim}_{Delta t to infty} frac{1}{T Delta t} & cdot int_{-frac{Delta t}{2}}^{frac{Delta t}{2}} X_{T}left t,f+frac{alpha}{2}right) X^_{T}left t,f-frac{alpha}{2}right) dt, end{aligned} (4).
Interestingly, these effects resulted from a relative difference in deactivation between conditions – with the target contrast (numbed hand>baseline during intensity trials) being the only condition that showed activation and all the other conditions showing deactivation.
On the basis of these assumptions the study had 80% power to detect a relative difference in incidence before and after the intervention of 42% at a 5% level of significance.
On the basis of these assumptions a study with 12 clusters would have 80% power to detect a relative difference in coverage between groups of 35% at a 5% level of significance.
A relative difference (about 10%) in substitution rates between the NDR and the equidistant centre point of nucleosomal DNA (dyad) was reported in Washietl et al. [ 25].
A 0.017 absolute difference represents a 22% relative difference in mean energy expenditure between groups.
The value of the selection depends on the alternative hypothesis, i.e. on the correctness of the belief that rare alleles will tend to have a larger average penetrance, and therefore a larger relative difference in detection rates.
Here, in the least optimal two-class comparison scenario, the two classes of sample size 18 (patients with late OA) and 20 (control individuals) possess a minimal statistical power of 80% at the 0.05 level of significance to detect a 50% relative difference in the presence/abundance of a tested protein between classes.
Statistical power was determined a priori as requiring 450 women in the operative cohort based on a reported endometriosis prevalence of 38% and a 20% relative difference in mean serum PCBs concentrations by endometriosis status (Louis et al. 2005) at the time the study was designed.
