The phrase "a criterion of three" is correct and usable in written English.
It can be used when referring to a standard or principle that involves three specific elements or factors.
Example: "In our evaluation process, we established a criterion of three key performance indicators to assess the project's success."
Alternatives: "a standard of three" or "a measure of three".
A criterion of seven shared alleles out of the 9 alleles examined was used to define a clonal complex.
We used a criterion of two or more black hexagons for a carrier as highly likely to represent a local abnormality.
Each rat had one training session per day and was trained to a criterion of nine correct trials in one block of 10 trials (binomial distribution p < 0.01, likelihood of attaining criterion in a 10-trial block).
Rats were tested until they reached a criterion of two sessions in a row of at least 8 out of 10 rewarded trials with average errors per trial of less than 1.0 over those two sessions.
Participants who failed to reach a criterion of four consecutive correct responses within 20 trials were given a short version of the task and excluded from analysis (n = 1).
The participant's first sorting choice becomes the correct feature, and once a criterion of six consecutive correct sorts is achieved, the subject is told that the rules have changed, and cards must be sorted according to a new feature.
After rats learned to reliably retrieve the rewards from fully baited cups, they were transferred to a series of simple discriminations (SDs) (rubber vs. masking tape; vinegar vs. soy sauce; styrofoam vs. shredded paper) to a criterion of six consecutive correct responses.
A criterion of ± two fold change (on log2 scale) was applied and 19110 transcripts were identified that were regulated at least 2 folds in either high temperature stress and/or drought stress.
Valid loci containing one or two RAD alleles could be manually identified, however a criterion of at least three markers per loci was sufficient for our purposes.
The ICG-R is based on 15 questions with a 5-point Likert-scale, a functional criterion and a duration criterion of six months.
