Raw scores are normalized using a bell curve (normal distribution) specific to the test-taker’s reference group (e.g., same education level, industry, or age bracket). Common scales:
Measures "mental power" plus processing speed.
A verified scoring report must disclose:
For clinical or high-stakes decisions, the MD5 should be supplemented with:
The MD5 is a "short-form" mental ability test. It typically consists of 57 items that must be completed within a strict 15-minute window. The questions are primarily diagrammatic, requiring the test-taker to identify patterns, sequences, and logical inconsistencies within grids or shapes. Reduces linguistic bias.