Keirsey has been a trusted name in public research surveys for more than 30 years. Since 1978, more than 40 million people have completed the 70-question Keirsey Temperament Sorter. Keirsey has used online survey techniques to research and build upon Keirsey Temperament Theory – with more than 15 million online completions since 1995.
InFlow River Methodology
Our InFlowmethodology uses a high volume "river" technique for surveys which insures unique responses for high integrity as well as fast turn-around. There are no "professional survey takers" participating in order to earn rewards. In-Flow™ allows us to obtain valid results with demographic integrity in a fast and efficient manner.Read more ›