FIRO-B is an instrument that has been widely used for over 50 years. It can be a great value-addition to self-development, building team effectiveness and leadership development. I have often heard some trainers belittle it, saying that over the years it has lost its value. Further, many often claim that it is easy to fake the instrument. I can only say that both these are a gross generalizations. As for faking the instrument, I can safely say that anyone who makes this tall claim doesn't really know the instrument!
During early 1950s, William Schutz was asked by the US Navy if he could determine which kind of people would work better together in teams. Schutz's research findings led to his theory of interpersonal relations and development of the well-known FIRO-B instrument.