Final Historical National Statistics
The historical national exam statistics for PACKRAT can be found on our Assessment Resources page. Included in the Historical Statistics reports are details on means, standard deviations (SD), reliabilities, and standard errors of measurement (SEM) for all retired exams forms.
Current National Comparative Data
We know that having solid national comparative data is a top priority for PAEA member programs using PACKRAT. National Comparative Data is released after 300 student administrations and are updated regularly to reflect the most recent statistics. The data on this page include the mean and standard deviation (SD) for the current versions. National comparative data are based on the performance of the current population of student test-takers.
PACKRAT National Comparative Data
Raw score (score range of 0-225)
| EXAM VERSION | TIME TO GRADUATION | N | MEAN | SD |
|---|---|---|---|---|
| 27 | > 10 Months to Graduation | 10,290 | 134 | 21 |
| 27 | < 10 Months to Graduation | 13,288 | 159 | 18 |
| 28 | > 10 Months to Graduation | 13,153 | 132 | 21 |
| 28 | < 10 Months to Graduation | 11,153 | 157 | 17 |
| 29* | > 10 Months to Graduation | 691 | 134 | 22 |
| 29* | < 10 Months to Graduation | 448 | 158 | 18 |
* PACKRAT v29 was released in late November 2024. Therefore, the data presented here is based on a smaller number of administrations than with prior versions. This data will be updated periodically as more administrations occur. Please check the Program Performance Report in the Assessment Hub for the most current statistics.