CFLarson,
Schwartz studies are legit. The one case you site of Diane Goldner only shows she talked to the mediums and theirs no proof she gave the medium any information about the deceased. Sometimes the sitter in Scwhartz's study is miles away. I suggest you read the studies on his website.
Schwartz studies are just as legit as any blind study in any field. There is ZERO evidence that the mediums know the sitter(except the one case you talk about) or any information on the deceased.
Here's some info about one of his studies:
Participants
Eight University of Arizona students served as sitters: four had experienced the death of a parent; four, a peer. Eight mediums who had previously demonstrated an ability to report accurate information in a laboratory setting performed the readings.
Methodology
To optimize potential identifiable differences between readings, each deceased parent was paired with a same-gender deceased peer. Sitters were not present at the readings; an experimenter blind to information about the sitters and deceased served as a proxy sitter. The mediums, blind to the sitters’ and deceased’s identities, each read two absent sitters and their paired deceased; each pair of sitters was read by two mediums. Each blinded sitter then scored a pair of itemized transcripts (one was the reading intended for him/her; the other, the paired control reading) and chose the reading more applicable to him/her.
It's a blind study because the medium is blind to the sitter and the deceased. This was a triple blind study because in other studies the sitter is in a seperated room from the medium going over the responses. This time the sitter is not around during the reading and a proxy sitter takes his place. So the medium is blind to the sitter, proxy sitter and the deceased and the sitter is blind to the medium.
http://veritas.arizona.edu/index.htm
Here's an example:
A medium will come into a study and do a reading and they have no communication with the sitter and no information about the deceased. The medium starts there reading:
The lady is a grandmother (not specific but accurate if they are correct)
The grandmother had white hair (not specific)
She wrote books and was an author (specific)
I see cat eyes so I would say this lady was known for her strange cat eyes (specific)
This lady like flowers, and white roses were special to her (specific)
She used to be a swimmer and she even won a medal (specific)
She used to live near a park (not specific)
She had a best friend named Tammy or Tonya (specific)
It lasts longer but you get the picture. Now when you check how the sitter scored the medium you see they were right that the deceased was a grandmother, with white hair, she was an author, she was known for her cat eyes, she used to be a good swimmer and won a medal in high school and had a good friend name Tonya but she was allergic to flowers and she didn't live anywhere near a park.
In a blind study this proves life after death because the medium didn't know about the sitter or the deceased before the reading.
These studies are legit and controlled and you have to prove that the medium knows information about the deceased before the reading. You can make this claim with any study but you have to prove it with evidence or it makes no sense.
You also asked does Schwartz have an interest in psychics and life after death. Of course he does, that's why he's doing the research but that's no different than a physicist interested in string theory investigating string theory or someone interested in loop quantum gravity investigating loop quantum gravity. Are they disqualified from researching these fields because there interested in these fields?