Final answer:
Norms are used to compare a client to a reference group with similar characteristics in the interpretation of standardized assessment scores.
Step-by-step explanation:
Norms are used in the interpretation of standardized assessment scores in order to compare a client to a reference group with similar characteristics.
Norms are the average scores of a specific reference group, such as individuals of the same age or background. By comparing a client's score to these norms, we can determine how their performance compares to others with similar characteristics. This allows us to understand the significance of the client's score and identify areas of strength or weakness.