posttest
UK[ˈpəʊsttest]US[ˈpoʊsttest]
n
A test given after a lesson, course, or treatment to measure knowledge gained or the effects of that treatment.
Morpheme Breakdown
post
test
post
after
test
trial
Etymology
The word is a modern English compound formed by directly combining two classical elements. The prefix "post-" derives from the Latin adverb and preposition post, meaning "after, behind," which is of Proto-Indo-European origin. The noun "test" has a more figurative journey, originating from Latin testum, meaning an earthen pot, which was used in assaying metals. This evolved into testari (to bear witness) and testimonium (witness, evidence), leading to the modern sense of a trial or examination. When combined, the literal "after-trial" logically forms the contemporary meaning of an assessment administered following an instructional or experimental intervention to evaluate its outcome.
Analysis
Structure: post (after) + test (trial)
post: Latin origin, meaning "after, behind". Functions as a prefix indicating subsequence in time or order.
test: Latin origin (from testum, an earthen pot, later testari, to bear witness). Functions as a root noun meaning a critical examination or trial.
Examples
Students took a posttest to assess how much they learned from the training module.
The research design compared the pretest and posttest scores of the control group.
A significant improvement was observed in the posttest results.