Explanation of Scores
Interpretation of Test Scores for the Highly Capable Program
CogAT – Cognitive Abilities Test
This multiple choice, norm-referenced cognitive abilities test yields separate scores for three reasoning abilities – Verbal, Quantitative, and Nonverbal. The Verbal battery of the test measures a student’s vocabulary, comprehension of ideas, verbal memory and word relationships. The Quantitative battery addresses number relationships and equations, problem solving and mathematical reasoning. The Nonverbal battery measures the manipulation and classification of shapes and figures.
A student’s score is based on the norms for students of the same age that took the test in a national sample. These scores are reported in national percentile ranks. A percentile rank compares the student’s scores to others who took the test. If a student was at the 80th percentile rank, it would mean that the student performed better on this assessment than 80 percent of his/her peers.
ITBS – Iowa Test of Basic Skills
The Iowa Test of Basic Skills is a norm-referenced, multiple choice assessment that measures general achievement in reading and mathematics. Scores are reported in National Percentile Rankings. Percentile rankings indicate how far above their national peers they scored on the assessment. For example, a student scoring at the 90th percentile means that the student performed better than 90 percent of their peers on that section of the test.