The phrase "a fixed criterion" is correct and usable in written English.
It can be used when referring to a specific, unchanging standard or principle used for evaluation or judgment.
Example: "In our research, we established a fixed criterion to assess the effectiveness of the new treatment."
Alternatives: "a set standard" or "a defined benchmark".
However, because 24 students reported studying both alone and in groups, depending on the proximity to an exam or the nature of the assignment, it is clear that for some students in the sample, the social setting in which studying occurred was rather flexible and not a fixed criterion or preference.
Modelling of behavioural performance suggested that economic commitments were made when the normalised bandit value fell above (in rule in blocks) or below (in rule out blocks) a fixed criterion.
Using a fixed criterion for all locations may not be appropriate since the test-retest variability is strongly dependent on the initial defect depth and the eccentricity of the test points under consideration [ 14].
Dewey also resisted the conversion of a method of inquiry into a fixed criterion of value.
With an experimental design consisting of 3 independent runs with 3 replicates per run, a fixed criterion of ±20% of the reference method mean is proposed.
Like moral principles, the utilitarian standard of approval sets up a general standpoint for the appraisal of conduct, and revision of ends in light of such appraisal, rather than a fixed criterion that can be mechanically applied (E 237 47).
Besides any fixed criteria prior to a study involvement, sometimes also special requirements within the experiment itself are demanded.
Nor does she have any fixed criteria to help her figure out whether to do a film, her smoking wisecrack notwithstanding.
By comparison, Lampinen assumed a particular set of fixed criterion locations, which necessarily provides only a snapshot of the ROC.
These 6 were chosen from an initial list of 12 applicants via a rigorous selection process against fixed criteria that were designed to support Zero Waste practice.
Emphasis shifted from concern for meeting fixed criteria to the subjective state of the reader and then of the author himself.
