For Some Teachers, the Majority of Assessment Data Are Collected

For some teachers, the majority of assessment data are collected through an end-of- the-unit test.What is the greatest error that the teacher is making in doing this?

A) Students have forgotten many of the important details by the end of the unit.
B) The workload of grading papers is overwhelming when intense unit tests are given.
C) The teacher finds out too late that students need intervention.
D) The final grades are invalid since students are asked to demonstrate too many skills on one exam.
E) Research has shown that several quizzes throughout a unit are more accurate for assessment than one unit test at the end.