In order to tesl for critical thinking dispositions, the presence of the requisite critical thinking abilities must first be established. Otherwise, it is always a plausible counterexplanation of failure to use certain abilities that they were not possessed. If a person spontaneously uses some ability on a task, then it is often legitimate to conclude that the person has both the ability and the disposition to use it. However, if the person does not use the ability spontaneously, the conclusion is (...) ambiguous. The person might not have the ability, or might have the ability but not the disposition to use it, or not the disposition to use it in the specific circumstances of the presented task. This paper proposes methods of critical thinking testing designed to deal with each of these possibilities. (shrink)

This paper examines the views of Fogelin, Woods, Johnstone, etc., concerning deep disa-greements, force-five standoffs, philosophical controversies, etc. My approach is to reconstruct their views and critiques of them as meta-arguments, and to elaborate the meta-argumentative aspects of radical disa-greements. It turns out that deep disagreements are resolvable to a greater degree than usually thought, but only by using special principles and practices, such as meta-argumentation, ad hominem argumentation, Ramsey’s principle, etc.