While testing with the CogAT® Screening Form and Post-Screener we recommend that administrators provide the post-screener within 30 days of administering the CogAT screening form this is to help maintain integrity in scoring. The online Test Event dates for Post-Screener will only allow for a 30-day window. (if you are testing both the Screening form and Post-screener online.)
However, this does not mean that the testing must occur within 30 days. Testing may extend for a few weeks on either side of the Test Event date itself without affecting students’ scores.
If the gap in administering the Screening Form and Post-Screener is more than two months, the Post Screener is not recommended. The best option is to administer the full CogAT, including all nine subtests, instead of the Post Screener.
Students’ scores on the Screening Form are based on the Screening Form Test Event date; the complete CogAT scores from the Post-Screener are based on the Post-Screener Test Event date.
For instance, a student born any time in October 2011 and scored in a March 2020 Test Event will be scored using the age of 8 years, 5 months. If the Post-Screener Test Event is dated April 2020, the student’s complete CogAT is scored using the age of 8 years, 6 months.
Please note that a one or two-month shift in the date of scoring will have a negligible impact on most students’ age scores. Additionally, maintaining an earlier date in scoring gives students the greatest benefit, because expectations for performance are higher the greater the student’s age when scored.
Backdating your Post-Screener Test Event by one or two months maintains the integrity of your Screening Form scores and will not adversely affect students’ scores on the complete CogAT resulting from Post-Screener administration. For example, although you might administer the Post-Screener in May, you could backdate the Post-Screener Test Event to an April date to stay within the 30-day window. However, a gap of three or more months between the Post-Screener Test Event date and the actual administration of the Post-Screener will result in scores that may be artificially high and will be difficult to interpret with fidelity.
For regular administrations, the best practice is to set your Screening Form Test Event date toward the end of your screening testing window and set your Post-Screener Test Event date earlier in your Post-Screener testing window to provide the most flexibility in your testing schedule. For instance, a Test Event date set on any day in March, from the 1st to the 31st, results in the students’ ages being calculated relative to the month of March. Setting your Screening Form Test Event date as March 31 calculates the students’ ages the same as if your Test Event date were March 1 – but you then have an additional 30 days to schedule your Post-Screener (up to April 30, instead of April 1).
Additionally, setting up your Post-Screener Test Event in advance is a best practice that helps to ensure that you do not miss the 30-day window. If you missed the 30-day window due to an unplanned testing program interruption, the DataManager Support Center can assist you with opening a Post-Screener Test Event backdated up to 60 days to ensure that your students will have the opportunity to complete testing using the Post-Screener. Test Event dates cannot be backdated for more than 60 days.