How to Interpret a POST T-Score

by David Ferris

Law enforcement can provide a stable, interesting career for young people or those looking to change to a new field. Finding employment as a cop usually involves passing written and physical tests, undergoing a background check and graduating from police academy training. Many states also administer the Police Officer Selection Test (POST), which gauges an applicant's ability to perform the jobs of a police officer competently. T-scores are a method of statistically analyzing standardized tests and can be applied to the POST exam.

Find the standard deviation based on the population size (the number of people who took the exam).

Look at the distribution in bar graph form of the T-scores to gauge how well or poorly the sample set fared.

Represent T-scores as a scatter plot for another visual analysis. This shows the relationship between individual scores and the performance of the group as a whole.

Compare your score to the maximum T-score, which is 77.8. Minimum scores for passing vary state by state.

About the Author

David Ferris started writing professionally in 2006 and has been published in several newspapers. He has worked in a variety of fields including education and law. He strives to one day be an authority on all subjects, great and small. Ferris has a Bachelor of Arts in political science.