The IAAT is a sixty-item timed test divided evenly into four subtests. The actual testing time is 40 minutes. The time limit of each fifteen-minute subtest is 10 minutes.
The IAAT four subtests are:
Pre-Algebraic Number Skills and Concepts – The items on this subtest measure a student’s computational skills, understanding of mathematical concepts, and ability to solve mathematics problems.
Using Symbols – This section measures how well students understand some of the important symbols of algebra.
Representing Relationships – For each exercise in this part of the test, the student must find the rule representing the given numerical relationship. Some items present the relationship in table form, while others present the relationship in verbal form.
Interpreting Mathematical Information – The items on this part are based upon the information presented in graphs or definitions of mathematical terms or operations. The items assess how well a student can learn new material presented in graphs or text.