The phrase "a marginal effect in" is correct and usable in written English.
It can be used in contexts related to statistics, economics, or research to describe a small or minor impact of one variable on another.
Example: "The study revealed a marginal effect in the relationship between education level and income."
Alternatives: "a slight impact on" or "a minimal effect in".
However, IG teens showed only a marginal effect in their consistency to use highly effective birth control methods over time compared with the SC teens (P = 0.10).
Globally, the differences in bubbles sizes were found to play a marginal effect in the global enhancement of the kLa in the meso-tube in comparison with the intensive contact experimented by the bubbles rising in the oscillatory flow.
The contributions of this paper can be listed as follows: First, it identifies and formalizes a source which may produce a marginal effect in the direction of punishing repeat offenders more severely, namely learning.
The transition function (λ j and ϕ j ) parameters (education endowment and years of experience) are estimated as a marginal effect in the multinomial function shown in Table 1.
Inferior LOT showed a marginal effect in the same direction, [F 1,15) = 3.90, p = 0.067].
Recent meta-analyses report a marginal effect in prolonging disease-free survival, accompanied by severe harms, including death.
Although the mortar strength has only a marginal effect, reduction in mortar joint thickness is shown to have a profound effect on the masonry strength.
For the significant coefficients we transformed these coefficients of the logit regression into percentages using a marginal effect function in Stata (mfx, predict (p) – see Results section).
GW2974 was able to downregulate EGFR-dependent activation of Akt, Erk1/2, and had a marginal effect on Stat3 in a dose-dependent fashion.
Since the substrates of SHMT and DHFR are structurally similar, pyrimethamine, a potent inhibitor of the plasmodial DHFR, has also been tested on the recombinant SHMT, however, only with a marginal effect (IC50-value in the midmicromolar range) [ 35].
The genome-wide association study (GWAS) variant (rs9277535; 550A/G) in the 3'UTR of the HLA-DPB1 gene that associated most significantly with chronic hepatitis B and outcomes to HBV infection in Asians had a marginal effect on HBV recovery in our European- and African-American samples (odds ratio [OR] = 0.39, P = 0.01, combined ethnic groups).
