Big 5 Scales
Personality test measuring the big five personality traits and two aspects of each, developed from the Big Five Aspects Scale.

Personality test measuring the scales of the HEXACO Personality Inventory from the International Personality Item Pool.

Vocabulary Survey
Random sample of all English words, allowing for the total size of the subject's vocabulary to be estimated.

Spatial Ability Test

Spatial visualization ability is a frequently researched mental ability that has to do with understanding and manipulating information in the 3-dimensions we experience. This is an interactive test measuring spatial ability that can measure into the high ranges.

The test has four sections, each with a four minute time limit. There is a short research survey at the end, it is optional. At the end of the test you will receive a score and interpretation.