They also often work on a fee sliding scale. Check with psychologists and psychiatrists in your area. If you call and explain your financial situation some may provide low cost assessment. This is the decision of the individual professional. Check with your state special education or GED center to see if they have a list of professionals who will provide low cost assessments.
Educational specialists can often help reduce costs by doing the educational assessment.
This can be done in the adult education setting. After the psychologist or professional has completed the diagnostic process it is important to schedule an appointment to discuss the results of the assessment with them. Ask questions and make certain you understand what the professional is telling you. You need to understand the disability so that you can advocate on your behalf. You also want to make certain you obtain a report.