Many teachers are apt to take student writing or speech which is fluent and witty or glib and amusing as good thinking.
And when it helps us to solve problems that we could not solve before, it is surely properly called "creative".
The "making" and the "testing of that making" are intimately interconnected.
Let me suggest a way in which you could begin to test my contention.
If you are familiar with any thinking skills programs, ask someone knowledgeable about it the "Where's the beef? Namely, "What intellectual standards does the program articulate and teach?