The first three of the sub-tests are multiple choice; the other four are performance tests based on observation of activity.

In terms of their content, the sub-tests can be divided into four groups; abstract reasoning (Categories and Analogies), concrete reasoning (Situations and Stories), spatial ability (Mosaics and Patterns) and perceptual ability (Hidden Pictures).

An adaptive test procedure is used which reduces by half the number of items that would otherwise need to be used.

An important way in which SON-R tests differ from most intelligence tests is that after each item feedback is given by telling the test taker whether the solution was correct or incorrect. The test administrator provides help in the case of incorrect solutions by demonstrating what the correct answer should be. One of the advantages of this is that the test taker has the opportunity to adjust his or her strategy. In traditional tests where no feedback is allowed the test taker may assume incorrect answers are correct and continue using a faulty strategy. The disadvantage of giving feedback is the fact that receiving negative feedback can be demotivating. This drawback is partly compensated for through the adaptive nature of the test procedure.

Software for scoring and analysis is available. After the raw scores, the test date and the date of birth have been entered, the standard scores are calculated and a profile can be printed out.