Are you looking to go into a fully funded masters program? Is your overall undergrad GPA a 2.9 or your psych GPA a 2.9?
Have you been able to gain any experience in an I/O setting?
As for getting into a masters program, I don't think you will have an issue. However, if you were to apply to fully funded or half funded programs you may have some steep competition. You do have pretty great GRE scores, so I wouldn't retake it unless a lot of your schools rank the Quant section more favorably.
Coming from someone who's been in I/O background for a while now, I don't think you will have a problem getting into masters programs, as long as you have great letters, amazing statement of purpose, and if you raised your GRE even by a couple more points it could help a little. Since your current GPA is a 3.7 that will be waited more than your undergrad, but as long as you got mostly A's in your psych classes.
Don't stress too much, as I think you have a pretty great shot at getting into at least 3-5 programs you apply to if not way more.