The phrase "decisive variable" is correct and can be used in written English.
It is typically used in academic or technical writing when discussing factors or elements that have a significant impact or influence on a situation or outcome. Example: In this study, age was identified as the decisive variable in predicting the likelihood of developing the disease.
"The trouble with all the eagle-eyed Mayology is its anglocentric premise: that the British side of the negotiations is the decisive variable," wrote the Financial Times commentator Janan Ganesh this week.
Some with other genotypes became sick too, but it took longer, suggesting that what goes on at position 129 may affect incubation time rather than susceptibility.The incubation period of BSE in humans is the decisive variable for predicting the size and timing of any epidemic.
The data, mainly based on primary information collected from a representative sample, are analyzed in terms of differences in values and intentions, and reveal noticeable inter-regional diversity, while intervention duration appears as a decisive variable.
In PEM (polymer electrolyte membrane or proton exchange membrane) fuel cells the oxygen excess ratio expresses the proportion between oxygen reacting in the cells and oxygen entering the stack and represents a decisive variable for the mentioned issues.
end{array} (6 where W is the set of wind plants; |W| is the number of wind plants in the power system; φ m,t is the decisive variable controlling the variation range of wind plant output according to ( Gamma_{t}^{text{W}} ).
(10 where binary decisive variable u i,t is the status of CCPP i at time t, CCPP is online when u i,t = 1 while CCPP is offline when u i,t = 0; ( P_{i,hbox{max} }^{text{Coal}} ) and ( P_{i,hbox{min} }^{text{Coal}} ) are the technical maximum and minimum power limits.
Longitudinal studies are needed because they allow analyses of the mechanism and processes of change in these decisive variables.
Decisive variables φ v and Γ are introduced just as (6) to control the variation range of a v.
Under such an assumption, the actual limits of wind power W m,t are decisive variables to be optimized, represented by Γ-limits as ( overline{W}_{m,t}^{Gamma } ) and ( {underset{raise0.3emhbox{$smash{scriptscriptstyle{W}}{_{m,t}^{Gamma}} ).
The design takes into account decisive variables in household water consumption, such as family size, together with the consumption level, and the options offered in the choice task are combinations of different prices for each of the uses.
A logistic regression model was used to determine the most decisive variables associated with an exit intention, where the interdependence of factors affecting profitability and, subsequently, exit intention were taken into account.
