The phrase "a proportional effect" is correct and usable in written English.
It can be used when discussing the relationship between two variables where one changes in relation to the other, often in contexts like statistics, economics, or science.
Example: "The study found that increasing the dosage of the medication resulted in a proportional effect on the patients' recovery times."
Alternatives: "a corresponding effect" or "a relative effect".
A potentially limiting underlying assumption of this model class is that the explanatory variables have a proportional effect on the hazard function.
It was found that the chamber pressure has a stronger influence on the etching rate and taper angle of a trench and that the bottom power has a proportional effect on the taper angle of a trench.
Additionally, the initiation ages were found to show a proportional effect on extra time.
Assuming a proportional effect for the comparison between the populations masks the time-dependent nature of the effect.
Environmental robustness strongly correlates with mutational robustness so that the promotion of one variable entails a proportional effect on the other.
Bland-Altman plots showed that the greatest differences in mean difference involved comparisons to the Octopus 3°/sec stimulus speed in which a proportional effect was seen showing increasing differences between tests as the average increased.
The fact that our analyses suggested a constant proportional effect of the rs1229984 A-allele on alcohol volume across a wide range of alcohol volume from the included studies supports the notion that social pressure in heavier drinking cultures is unlikely to override the effect of the genetic variant on alcohol consumption.
A study in France found a larger proportional effect of changing from single- to two-view mammography on two-year interval cancer rates, finding a reduction of more than 30% (Seigneurin et al, 2009).
16The general idea of a proportional hazard model is that the effect of an independent variable is seen as having a constant proportional effect on the baseline hazard.
On the other hand, temperature had a directly proportional effect on the stability of the suspension and an inversely proportional effect on the whiteness of the CNC produced.
A meta-regression analysis of the mean alcohol volume (on the log scale) in rs1229984 A-allele carriers compared with non-carriers that takes into account the uncertainty around the mean suggested a constant proportional effect of the of ADH1B rs1229984 variant on alcohol volume (fig S5).
