It's Time We Brought Introspection Out of the Closet.

I identify the main reasons why introspection unofficially has been banned from the field for some 100 years, though it has been partly smuggled back in through the use of "verbal (self-) reports." I then show why introspection is indispensable to psychology. I argue that this ban has retarded the progress of psychology by taking attention away from the problem of the accuracy of self-reports, limiting our understanding of concepts like emotion, discouraging psychologists from using introspection themselves, and ignoring the study of how to develop introspective skill. I conclude by suggesting some approaches to validating introspective reports.