The phrase "a test population of" is correct and usable in written English.
It can be used in contexts related to research, experiments, or studies where a specific group of subjects is being examined or analyzed.
Example: "The researchers selected a test population of 500 participants to evaluate the effectiveness of the new drug."
Alternatives: "a sample group of" or "a study cohort of".
Since the CET has a test population of nine million for each administration, it takes 2 weeks for over 4000 raters in 12 marking centers across the country to complete the scoring of 9 million writing scripts and 9 million translation scripts after each test.
We split these horses into a test population of four horses and a reference population of 24 horses.
This index was initially tested on a sample of medical hospital inpatients and later validated on a test population of breast cancer patients at another acute care facility.
A test population of 356 MTB isolates classified by spoligotyping analysis into six MTB lineages was typed using 15-locus (including ETR-A, B, C) MIRU-VNTR profiling.
To directly assess RTE maintenance in vivo, a test population of either Rag1-GFP blt/+ or Rag1-GFP blt/ blt peripheral T cells was mixed with control non-fluorescent T cells and injected i.v. into congenic lymphoreplete hosts.
Residents of a small town outside the Florida Keys, Key Haven, would be the first community in the U.S. to serve as a test population for release of the genetically engineered mosquitoes.
A total of 2108 cattle were randomly divided into a reference population and a test population to evaluate the influence of the reference population size.
The 2108 cattle were divided into a reference population and a test population to evaluate the performance of different imputation methods.
TEM consists of two levels, TEM4 and TEM8, and has now approximately an annual test population of 260,000 (TEM4) and 200,000 (TEM8) (TEM Test Office: Test report to universities, unpublished).
Genotypes were compared to a previously tested population of 432 healthy students.
Two-generation unrelated females (i.e. gilts with different and unique parents) were chosen according to their EBV for BFT (152 with most negative and 152 with most positive EBV) within a performance tested population of ~12000 pigs (details of EBV calculation are reported below).
