My DS loves doctor appointments (he loves to pump the doctors for information...) so I told him that he was going to a "brain checkup". I explained that a psychologist is a doctor who studies how people think by asking them questions to see what their answers will be. DS was thrilled with his brain checkup (he took the WPPSI-III when he was 4.5) and has asked when his next one will be smile

I know some kids hate going to the doctor, so I don't know if this would work for you.

Cathy