C-26, r. 212 - Code of ethics of psychologists
48. Psychologists must recognize the inherent limits of the measurement instruments they use and exercise caution in interpreting the psychometric material, in particular taking into account
(1) the specific characteristics of the tests or of the client that may interfere with their judgment or affect the validity of their interpretation;
(2) the context of the intervention; and
(3) factors that could affect the validity of the measurement instruments and necessitate changes in the administering of tests or the weighting of standards.