• The conditions are too dissimilar from those used for the normative samples and any significant change in proceedings might alter the results.
• Clients might consult others to determine which answers to make.
• The clinician cannot be aware of possible conditions that might compromise reliability and validity.
• There is no assurance that the client will actually complete the protocol himself or herself.
Thus, any administration should closely follow the administration procedures used for the normative samples.
This means providing clear, consistent instructions, ensuring
that the directions are understood, providing adequate supervision, and making sure the setting will enhance concentration by limi ting noise and potential interruptions.