Can't help with the testing question. But wanted to say that my dd4 is the same way. I got proof of it when I subbed for her teacher last week. There were 5 girls and 2 boys in her class that day. All the girls hanged out together, so did the boys and dd was by herself. She was very happy and did not seem to mind at all that she was by herself. In fact when I gently suggested that she join the others she said," yeah I thought about it. But I did not want to follow x (the leader girl) and decided to do my own thing." I let her be. It did bother me a bit but my mom reminded me that I was the same way as a kid. Even now I don't have friends but I am extremely happy. Some people just don't need to be part of a group to feel comfortable. They don't belong in a herd. At least that is the way I look at it. Maybe ask your dd how she feels and if she is unhappy with her social situation, you can help her with her concerns. Hth