The phrase "key determining factor" is correct and can be used in written English.
It is typically used to describe a crucial element that influences or determines the outcome of a situation or decision. Example: "The availability of funding was the key determining factor in the company's decision to expand their operations."
The key determining factor are still the people who choose to watch the movie.
YCAB focuses not only on youth, but on parents and especially mothers who are a key determining factor in ensuring that children stay in school.
A key determining factor in whether TPP does pass Congress is likely to be Hillary Clinton, who was supportive of the talks while secretary of state but has sounded more cool as a presidential candidate, particularly under pressure from Sanders.
As you note in "Juveniles and the Death Penalty" (editorial, Oct. 13), when the Supreme Court decides whether executing offenders under 18 violates the Eighth Amendment, it looks to evolving standards of decency as a key determining factor.
Studies show that fear of traffic is a primary reason why parents won't let their children travel to school on their own, and the volume of traffic in your street is a key determining factor on whether you know your neighbours.
Although it has been shown that the size of nanoparticle-based vaccines is a key determining factor for the induction of immune responses, few studies have provided detailed analyses of thresholds or critical sizes of nanoparticle vaccines.
Westminster council's chairman of planning, councillor Richard Beddoe, said: "The lack of family support and the committee's concerns around the design of the proposed statue were the key determining factors in turning down this application.
The coupling torques, which are the key determining factors for implementing synchronization, are particularly examined to explain the synchronization regime, based on the average energy method.
The amount of aerodynamic downforce a car has is one of the key determining factors in its performance.
But assuming the company is within the investment parameters of the fund, here are 15 key determining factors for whether a venture firm will or will not decide to invest in a startup that is seeking venture capital.
Since the evolved stars in LMC and SMC are mainly C-rich and very likely metal-poor, this result may indicate that these two characteristics are not the key determining factors, or not enough.
