Hey there,
I'm not sure what values based night is, but my chapter always has a night during rush called chapter values night. This is the night we tell the girls about our chapter, its history in more detail and also about our services etc. Like I said I don't know what vaules based night is, but it could be similar to what we do. I hope this helps you out some, and by the way, its one of my favorite nights! Good luck with Rush!!!!
"Phi Mu for life"