Thank you indigo, aeh and puffin for the responses.
aeh, from your response, I understand GAI is generated during every WISC testing. I am puzzled why the psychologist said he will provide me GAI, if it applies.
We do not have any inconvenience in extending the appointment and no travel is necessary as the doctor's office is very close to where we live. However, I am just concerned if he would rush the testing if the timeline gets extended and he is running late for the next appointment etc. When I asked him about that, he mentioned that he has tested HG kids and still 2 hours were enough. Like you have mentioned, I really hope the timeline does not affect the results in anyway.
Is most of the testing conducted orally, except for the processing speed tests which requires using a pencil?
