It is an application of "Kokology", the study of kokoro (Japanese: "heart, mind, mentality, emotions or feelings"). ... For example, you may describe the cube a certain color because it gives you a feeling of calmness. All you have to do is answer … However, another person may describe the cube a different color that also gives her a sense of calmness. The Cube Personality Test This short personality test is a cold-reading technique that aims to give some insight into your personality. The quiz was first published in the best-selling book “Kokology” by Japanese author Tadahiko Nagao. The Cube Personality Test. The game was popularized by Annie Gottlieb's short book "Secrets of the Cube" (released 1998). The "cube" personality test was developed by Japanese psychologists in the 1990s and introduced to America in 2000. It’s important that you describe whatever comes to your mind first for each question. It’s known as the ‘”cube personality test” and it was developed by Japanese psychologists in the year 2000. The fun personality quiz site. All that said, allow me to guide you through my version of the Cube Personality Test. The main focus is the analysis of … The Cube is a Kokology game about self knowledge and is based on asking another person to describe a series of three to five objects.