PsychAssessment
Quantitative Aspects of Psychological Assessment

Z-score Lookup

This Page Calculates the normal curve probability of a Z score

Enter your Z score below and click on the button.

  Enter a Z Score

Calculator Disclaimer: This calculator has been developed for educational purposes, so that psychologists can learn to apply psychometric formula to clinical situations. It has been tested and validated with data from examples used to teach psychometrics on this site. It has not been tested or validated with a wide range of clinical data. Therefore we cannot offer any guarantee that the results of any calculation applied to clinical data is appropriate, accurate or valid.