The Evaluability Hypothesis

Although the field of polarity is well researched, this monograph offers a new take on polarity sensitivity that both challenges and incorporates previous theories. Based primarily on Swedish data, it presents new solutions to long-standing problems, such as the non-complementary distribution of NPIs and PPIs in yes/no-questions and conditionals, long distance licensing by superordinate elements, and the occurrence of polarity items in wh -questions. It is argued that polarity sensitivity can be