The phrase "additive relation" is correct and usable in written English.
It can be used in contexts such as mathematics, statistics, or discussions about relationships between variables where one quantity is added to another.
Example: "In this study, we found a significant additive relation between the two variables, indicating that their combined effect is greater than the sum of their individual effects."
Alternatives: "cumulative relationship" or "summative connection".
There was an additive relation between the number of risk factors for the metabolic syndrome and the extent and severity of abnormalities in SPECT findings (p <0.0001).
Accordingly, the synergy index, which was close to 7, indicated a departure from an additive relation.
The synergy index of 5 indicated a departure from an additive relation, and the proportion of disease among those with both exposures was 80%.
The joint effect from VCM exposure and viral hepatitis infection (close to the sum of separate effects), and the S index (close to unity) indicated an additive relation.
The joint effect from VCM exposure and viral hepatitis infection seemed less than multiplicative, and S indicated only a moderate departure from an additive relation; the interaction of two factors was responsible for 38% of the HCC cases.
This open-ended format pointed to how they were understanding and appropriating tables into their thinking about additive relations.
In this paper, we specifically illustrate our work with the second graders on additive relations, through the children's work with function tables.
The course consisted of 16 contact days spaced across the school year in 2-day blocks, with each block focused on a content area - e.g., numbers and number system, additive relations, multiplicative relations, etc.
Transformations are generally applied to correct for heteroscedasticity [ 7], to convert multiplicative relations into additive relations, and to make skewed distributions (more) symmetric.
Epistasis, defined as the non-additive relations between alleles at different loci, can expand the range of phenotypic variation in a population.
Interactive effects of any suspected risk factors were evaluated by assuming an additive interaction relation.
