2nd week of School and the Teacher phone call comes

I honestly have no idea what to do. Gabby is stubborn even at home but not to the extent she seems to show at school.

Teacher called Gareth today and Gabby has already done the following since school started...

They have to change into slippers each day (Gabby knew this and was excited as we even got her new slippers to change into) The other day she wore her cowgirl boots and was trying to insist she was going to wear them all day....yesterday same thing she wore sneakers and said she didn't know where her slippers were so she was going to wear her sneakers....

They had a math test....they were to answer the problems in the picture THEN color the picture...Gabby insisted she knew the answers already so colored the picture in without writing her answers (pretty sure all were correct though but that is beside the point)

Then they had some sort of other work time where they were to have a divider up....(desks are grouped into 4's with two kids facing two kids) she insisted on putting up additional stuff from out of her desk as added privacy or something.....

Over one of the incidents the teacher had her aide take Gabby from the class where Gabby cried for 20 minutes.

The teacher said she wants a children study done on her so will fill out the form to have it done....

I am all for having anything done that could help her but any idea what they would be looking for? I know Gabby is really intelligent and does great on all her school work....it is the stubborness and issues with authority I mean what is gonna help that?!

I know she is spoiled and we have been working on that and I have even gotten her to donate several boxes of her stuff and trying to get her to value things more etc....We do not let her always have her way...we do a chart at home where she gets a sticker each day she does not get in any trouble at school etc....

I am scared they are just going to toss a pill at my kid (which getting her to even take would be a whole new battle I am sure!). I did a little research though and saw something about a child lacking in omega 3's and vitamin E could show signs of a defiant disorder or ADHD etc...I am going to try and find her a gummi vitamin to start taking each day just to try that! I also see Jif is doing a pb with omega 3's in it now...

Any other suggestions would be greatly appreciated!