The phrase "a predominant factor" is correct and usable in written English.
It can be used when discussing the main or most significant element influencing a situation or outcome.
Example: "In the study, a predominant factor in the participants' success was their level of motivation."
Alternatives: "a key element" or "a major influence".
Mosquitoes hunt using all of their senses, but smell is a predominant factor.
In fact, when G.M. announced the search, its chairman, Roger Smith, said the perks would not be a predominant factor.
Credit scores would be considered, though the agency said they would not be a predominant factor.
Erosion due to turbulence is a predominant factor in plant design for slurry handling.
Wheel tread condition is a predominant factor in noise emission of railway vehicles.
Mr. Canon said it was now clear that the court's prohibition on using "race as a predominant factor means what it says".
Likewise, as indicated by the scree plot, a single predominant factor was displayed.
These data suggest that epigenetic modifications may be an initial predominant factor allowing the recruitment of CREB-1 on GABARAPL1 promoter.
Patients were excluded if they had clinically relevant stress incontinence or mixed stress/urgency incontinence with stress as the predominant factor; an indwelling catheter; evidence of a symptomatic urinary tract infection, chronic inflammation, bladder stones, previous pelvic radiation therapy, previous or current malignant disease of the pelvic organs; or severe hypertension.
The epidemiological literature leaves little doubt that a specific few aromatic amines are the cause of bladder cancer in occupationally exposed persons and there is a convincing argument to be made that exposure to aromatic amines via tobacco smoke is a major, if not predominant, factor in causing bladder cancer in smokers (2).
The take-home message was that race could be a determinant, but it could not be the predominant factor, in a school's admissions procedure.
