Abstract
Brainstorming (hereinafter referred to as BS) is a method of idea generation used mostly at the place of meeting or discussion. Sasai et.al. Investigated one of four rules of BS "being quantity from quality" quantitatively, and verified positive correlation between the quality and quantity of idea. On the other hand, the real parent of BS, A-F Osborne of BS, reported that an utterance is controlled in front of others. The authors generated a hypothesis that the quality and quantity of idea could be raised further by reducing utterance control (promotion of an utterance). In this research, based on consideration that a mental factor influences utterance control strongly, the authors proposed BS with utilizing action analytics, which is a one system of psychology. As a result of experiment to verify a hypothesis, the quality and the quantity of idea from BS which utilized action analytics were higher than those from usual BS, and so the hypothesis was proved.
