A torrent of complaints has been levelled against testing in recent months. Some of the criticism is associated with the PARCC exams, Ohio’s new English and math assessments for grades 3–8 and high school. The grumbling over testing isn’t a brand new phenomenon. In fact, it’s worth noting that in 2004, Ohioans were grousing about the OGTs! In the face of the latest iteration of the testing backlash, we should remember why standardized tests are essential. The key reasons, as I see them, are objectivity, comparability, and accountability.
Reason 1: Objectivity
At their core, standardized exams are designed to be objective measures. They assess students based on a similar set of questions, are given under nearly identical testing conditions, and are graded by a machine or blind reviewer. They are intended to provide an accurate, unfiltered measure of what a student knows.
Now, some have argued that teachers’ grades are sufficient. But the reality is that teacher grading practices can be wildly uneven across schools—and even within them. For instance, one math teacher might be an extraordinarily lenient grader, while another might be brutally hard: Getting an A means something very different. Teacher grading can be subjective in other ways, including favoritism towards certain students, and it can find its basis in non-achievement factors like classroom behavior, participation, or attendance.
But when students take a standardized exam, a much clearer view of academic mastery emerges. So while standardized exams are not intended to (and should not) replace...