What is test construction

The later stages of test construction are empirically driven as item characteristics such as:

Test construction is a reiterative activity.
The test can be modified at different steps of construction based on the results of evaluating the test.
For example, after designing items for a test, an analysis of the internal consistency of the test may result in removing items that have lower correlations with the underlying construct.

Test development or test construction refers to the science and art of planning, preparing, administering, scoring, statistically analyzing, and reporting results of tests.
This article emphasizes a systematic process used to develop tests in order to maximize validity evidence for scores resulting from those tests.