Novice needs help with cache question
I have had my site here for about 9 months and never really got into it because business was super slow, but...now I need some help.
I conduct social research with surveys and have just moved into web surveys. One survey I have is with a school district and I will have several students logged in all at once and the computers they use will later be used by another set of students. My software program I am using suggests that I have watch and change my cache time as needed to make sure that students can't see previous student answers. So, how do I check this and change it? I am not a programmer nor a web design specialist, just a researcher trying to learn so please use 5 cent words.