The phrase "as main effects" is correct and usable in written English.
It is typically used in statistical or experimental contexts to refer to the primary influences or factors being studied.
Example: "In our analysis, we will consider temperature and pressure as main effects on the reaction rate."
Alternatives: "as primary factors" or "as key influences".
Data were analyzed with horse and treatment as main effects.
Balance data were analyzed using a general linear model procedure with horse, period and treatment as main effects.
The ANOVA of daily milk weight data was conducted utilizing a 2 × 2 factorial design with cooling and rbST treatments as main effects.
Two-way analyses of variance with repeated measures were performed for each dependent variable (P ≤.05) with Supplement and Test as main effects.
Serum Cu data were analyzed using the general linear model procedure with horse, treatment and period as main effects and time as the repeated variable.
Treatments were arranged in a 2×3 factorial design with diet complexity (simple or complex) and added sugar (none, lactose, or sucrose) as main effects.
Multiple logistic regression analysis was performed using gender, age and family history of migraine as main effects.
The model included treatment as main effects and age, body mass index (BMI), pre AMH, parity, pre FSH, and pre LH as covariates.
Further, we evaluate for the first time in a continuous-rating paradigm whether these four cues influence sexual perception in only an additive fashion (i.e., as main effects only) or potentially in a multiplicative fashion.
For the host-plant selectivity experiment we used a factorial ANOVA with plant species and bacterial strains as main effects.
We constructed statistical tests for the effects of these factors using a linear model that included both factors as main effects with no interaction.
