The 'free' online ones are garbage and are highly inaccurate. The real tests contains graduated ranges of questions / puzzles to solve, and various categories of mental abiities to evaluate. They are developed and calibrated against known levels of intelligences.
The 'free' online ones are garbage and are highly inaccurate. The real tests contains graduated ranges of questions / puzzles to solve, and various categories of mental abiities to evaluate. They are developed and calibrated against known levels of intelligences.