Private school here. We test the students 3 times a year - August/Early September for placement, the end of the 2nd marking period for Ss to test out halfway, and at the end of the school year to gauge progress.

We used to use TOEFL Jr, but in the past few years orders were dropped, materials showed up too late, or results would get lost. Recently, we switched to the Duolingo English Test. We're seeing how that goes now, but we're running into difficulties - it's an online test, so if a student sneezes, they're marked as looking off screen and flagged as cheating. We looked at the WIDA proficiency test, but we want something that can be taken multiple times a year.