I'm glad they were helpful to you!

In answer to your question: not necessarily. Most tests of this nature have basal and ceiling rules, often with start points based on age, so younger students typically will see easier items than older students, even if they are working off of the same form. For example, (and these are not taken off this test in particular) say a subtest has 30 questions. They would be arranged in order of difficulty, with the easiest questions at the beginning, and increasing progressively in difficulty until the last item. The kindy students might start on number 1, and continue until they get three in a row wrong, at which point the discontinue rule would be triggered, and the examiner would stop testing. Grade 3 students might start on item 8, and work until they triggered the discontinue rule. So the 20 minutes might not cover the same items for any two students.

If there is a single start point, but a ceiling/discontinue rule of some kind, then one would expect the older students to take longer, since they would probably go further before getting that many wrong in a row.

When the raw scores are converted to percentiles/scaled scores, they are compared to their own age groups, which compensates for the difference between what a typical older student and younger student might have learned.


...pronounced like the long vowel and first letter of the alphabet...