dunce, as your name implies your stupid, the response time IS the refresh rate, common companies kept using Hz based refresh rate for LCDs because of people who would become confused, watch an LCD monitor, reduce it's refresh rate to the lowest "supported", then increase it to it's max, what happens? Nothing. Because LCDs are ALWAYS at the response time they are designed to operate at, this is constant and WILL NOT CHANGE, trust me I didn't spend 11 years studying computers and relevant technology just to be lambasted by this.
Refresh rate is used ONLY with CRT's it's the amount the guns fire PER SECOND! Video tape a CRT then video tape an LCD, you'll notice lines going up the CRT, but the LCD is crisp as ever, LCDs don't have electron guns, therefore refresh rate doesn't apply in the sense of CRTs infact LCDs ONLY use Response time. read a tech magazine or an A+ CompTIA or Cisco approved book they will concur with what I have stated, I didn't earn my A+ by sitting around with my thumb up my butt doing nothing.