As titled. Based on the annotated list given in Ennis (1993), I have tried to locate papers on Cornell Critical Thinking Test Level X, Test of Critical Thinking, New Jersey Test of Reasoning Skills, and Ross Test of Higher Cognitive Processes. But since none of these instruments are openly and freely accessible, I cannot determine if they suit my purpose. Is there any open-source and well-tested alternative for that?
Ennis, R. H. (1993). Critical Thinking Assessment. Theory into Practice, 32(3), 179–186.