“…In his meta-analysis of experiments examining these techniques, Schwenk (1990) concluded that they lead to higher quality decisions and lower judgment errors. The controversy induced by arguments of advocacy and opposition challenges important assumptions and induces members to critically reevaluate their own beliefs (Schweiger, Sandberg, & Ragan, 1986;Schweiger, Sandberg, & Rechner, 1989 By stimulating divergent thought and attention, substantive conflict also enhances the cognitive flexibility necessary for creative problem solving (Hoffman, Harburg, & Maier, 1962;Kurtzberg & Amabile, 2000;Nemeth, 1986;Schulz-Hardt, Mojzisch, & Vogelgesang, 2008). Surprisingly, this appears true even if no single team member's judgment is correct.…”