IPA: /ˈsʌbˌtɛst/
KK: /sʌbˌtɛst/
A smaller test that is included within a larger test, often used to measure specific skills or abilities.
The psychologist administered a subtest to evaluate the child's reading comprehension.
Subtest → It is formed from "sub-" (meaning under or below) and "test" (from Latin "testari", meaning to witness or to prove). A subtest refers to a test that is part of a larger test, thus being under or a subset of the main test.
Think of a test that is 'under' or part of a larger assessment — 'sub-' means under, and 'test' relates to proving or assessing.