The Thomas International General Intelligence Assessment (GIA) is a timed test that is administered through the Thomas International website. It consists of five individual sets of questions that are designed to measure fluid and crystalised intelligence and give employers an indication of your likely response to training.
The GIA consist of a series of tests including reasoning, perceptual speed, number speed and accuracy, spatial visualisation and word meaning. The test measures both a candidate's speed and their accuracy.
Your responses are compared with the scores of a sample of the UK population and the result is given in the form of 'percentile position'. e.g. if your score is in the 75th percentile, you have done better than 75% of the sample population.