PHD giving me test

Social Security is sending me to a PHD to take some test.  Does anyone know what kind of test they give you?  I have a regular psychologist that I have been going to that did an interview and determination on me that SS sent m,e to and now this.  What kind of test are they and what do they ask.  This has me so worried and I am getting even more panic attacks over thinking about this.  Every time we talk about me I end up crying but when we talk about my kids are other topics I seem to do okay

[larbec7]

and it is also an interview