What was Watsons view of introspection

I believe that introspection is important, and that it can lead to behavioral change in the individual.Measuring that change is another matter altogether.Watson, introspection was an unscientific process.Since watson studied the unconscious, he regarded it as appropriate for psychoanalysis.True the only methods to be used, watson said, were 1) observation, 2) tests, 3) verbal report, and 4) the conditioned reflex.Watson criticized structuralism and functionalism for the method of introspection and for the fact that both schools' subject matter was consciousness.

Watson had other criticisms of introspection, such as the endless controversies over such topics as whether there was imageless thought (about which karl buhler and wundt battled endlessly).Watson said the behaviorist would completely eliminate introspection from psychology.My second question is about the kind of evidence a behaviorist could use to infer thinking.