Calculadora de Nota Z-Score — Formula
## How to Calculate a Scaled Score
A scaled score converts a raw score to a standardized scale for fair comparison.
### Formula
**Scaled Score = Scale Min + (Raw Score / Max Raw) x (Scale Max - Scale Min)**
This linear mapping preserves relative performance across different test forms.
A scaled score converts a raw score to a standardized scale for fair comparison.
### Formula
**Scaled Score = Scale Min + (Raw Score / Max Raw) x (Scale Max - Scale Min)**
This linear mapping preserves relative performance across different test forms.
Exemplo Resolvido
A student gets a raw score of 45 out of 60, mapped to a 200–800 scale.
- Proportion = 45 / 60 = 0.75
- Scale range = 800 - 200 = 600
- Scaled score = round(200 + 0.75 x 600) = round(650) = 650