The phrase "a single test of" is correct and usable in written English.
It can be used when referring to one specific examination or evaluation of something, often in a scientific or analytical context.
Example: "The researchers conducted a single test of the new drug's effectiveness on a small group of patients."
Alternatives: "one assessment of" or "a solitary evaluation of".
Another reason for skepticism is a weakness in the Jaeggi study's design: it included only a single test of reasoning to measure gains in intelligence.
Researchers said the data should be interpreted with caution because the prediabetes and diabetes status of the adolescents was based on a single test of each participant's fasting blood glucose level, which could be unreliable in children if they had not fasted for at least 8 hours before taking the test.
But Castle, in its court papers, argued that the lawsuit's contention that it mixed its fuel with waste oil was based on a single test of one delivery that it made last year out of 108,000, and that the suit provides no details on who conducted the test or how it was performed.
That said, the NAD asserts that LG's "broad line claims are premised upon a single test of the parties' entry-level model 3D televisions" and have found the consumer-perception evidence to be materially flawed.
The assessment of statistical significance is based on a single test of the collective effect of all microRNAs on the X-chromosome.
The selection criteria were also changed with a single test of general knowledge related to each area of the course.
A systematic review of diagnostic tests for glaucoma failed to identify a particular advantage of a single test for the purposes of glaucoma screening.
Before a single test image of a given content was shown, all test images of the content in question were shown to the observer as a slide show.
Kerr says that doing a single test, regardless of the type, could save lives.
A single test tube of DNA tiles could perform about 10 trillion additions per second--about a million times faster than an electronic computer.
For identifying IFG and diagnosing diabetes, we used a single test result of FPG determined at an annual health check-up.
