Test Score Analysis Calculator
Convert a raw test score into z-score, percentile rank, and stanine.
How to Use the Test Score Analysis Calculator
- Enter the student's raw score.
- Enter the class mean score.
- Enter the standard deviation.
- Click Calculate for z-score, percentile, and stanine.
使用例
- •Student performance assessment
- •Standardized test analysis
- •Educational psychology
計算式
z = (x − μ) / σ; percentile from normal CDF
よくある質問
How accurate is this calculator?
Results are based on standard scientific formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, seconds) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.