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By Jan D. Sinnott. Several leading theories, including Sinnott's, are applied to describe the thoughts and emotions of adults as they solve illstructured problems. She is both contributor to and editor of Beyond Formal Operations I, II, and III (Praeger, 1984).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.