The paper identifies some major issues in assessing creative problem solving. Four main problems are discussed: (1) no single widely accepted theory of creativity exists; (2) there is a lack of understanding of the implications of the differences in assessment procedures; (3) researchers, on the one hand, view creativity as entirely a cognitive process or, on the other hand, entirely as a complex set of personality traits; and (4) some difficulties of assessing creative problem solving relate to the heterogeniety of the tasks that have been employed. Also listed are a number of practical problems, such as: (1) how do we know that what we consider creative tasks are creative? and (2) maybe our most unusual tasks are boring, unexciting and trivial for the most imaginative examinee. (Author/MC)