Stanine scores are calculated using percentiles and stanines.
A stanine score is a way to scale test scores on a nine-point standard scale.
Every test score can be converted from the original score using this method.To a number between 1 and 9.
2.According to the following table, the lowest 4% of scores should be given a stanine score of 1, followed by the next lowest 7% and so on.
Stanine scores allow us to gain a quick understanding of where a given test score lies relative to all other test scores.
A student who gets a test score in stanine 5 is part of the middle 20% of all test scores.A student who falls in stanine 9 received a test score in the top 4% of all scores.
The downside of using stanines is that a test score in a given stanine could be close to a score within its own.
Students who receive a score in the 40th through 60th percentile are grouped together in stanine 5.A student whose test score falls in the 58th percentile would be close to the scores received in stanine 6.
The test score at the 90th percentile is higher than the rest of the test scores.All test scores are in the middle of the 50th percentile.
2.A standard deviation is the number of standard deviations from the mean.It's calculated as:
Z-scores and percentiles give us a better idea of where certain test scores rank compared to stanine scores.