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Percentiles, Norms and Comparison Groups

Sample Insight Assessment graphic showing performance against comparison percentiles

Norm-referenced scores are an important factor in interpreting assessment report data. Comparison of individual and group percentile scores to a national sample of test-takers, similar to those assessed at your agency, allows you to demonstrate the strength of your students’ critical thinking skills against an external standard. Norm-referenced scores demonstrate the value of education and training programs and often are the determining criterion for receipt of performance based public and private funding. 

comparison percentile score is available for each of these critical thinking skills tests (CCTST, CCTST-N, TER, TER-N HSRT, HSRT-N, HSRT-AD, BCTST, BCTST-NEDUCATE INSIGHT Reasoning Skills Grades 3-5, EDUCATE INSIGHT Reasoning Skills Grades 6-8, EDUCATE INSIGHT Reasoning Skills Grades 9-12 and  CCT-G835.  (Click on the Norms tab of any individual assessment page to see available external criterion groups for that instrument). Percentiles are reported for each individual tested and for the group overall. These percentile rankings indicate the strength of critical thinking skills when compared to a national sample of other similar student groups.

Insight Assessment’s critical thinking skills instruments have been used to assess critical thinking skills in hundreds of thousands of individuals, representing a wide variety of test-taker populations. There are many available comparison groups that can be applied to student and professional groups, allowing you to match your group to a national sample. In rare cases, your testing group may be so unique that there is no available aggregate norm to use as a comparison group; In this case you may wish to have one created for you. The development of a custom comparison norm group for your sample is available as a custom assessment report option. Contact Insight Assessment for a quote on the cost of this service. 

Contact us to discuss how comparing your student scores to a national or regional comparison groups will add value to your assessment project.

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