SignalPatterns helps people learn more about themselves. The science behind their psychology research-based surveys relies on the Big Five personality dimensions consisting of extraversion, agreeableness, conscientiousness, emotional stability and intellect.
The SignalPattern team does not believe in "types" of personality as in the famous Myer-Briggs test that looks at only 16 personality types. Instead, it looks at the dimensions of personality. People can score high or low on each of the five dimensions. So looking at the different possible combinations, this leads to 45 traits.
In English, MySpace has about 200 million active users. If you distribute people evenly into the 16 personality types, and you share the same personality type with 13 million other users. Looking at 45 traits provides more detail and finding subtle differences among people.