Confused on How QuestBridge Works

Hi! If anybody can help me understand how Questbridge works I’ll greatly appreciate it. What I’m confused on is for example, if I apply to Columbia ED through Questbridge, get rejected through Questbridge, can I still apply to Columbia RD? Also, can I apply to Columbia ED through Questbridge and apply ED to Columbia through Common App? Like is there a separate pile that QuestBridge ppl are put in when appling to schools? LOL I know I must sound like an idiot, but I’m just confused on that part. Thanks!

If you rank Columbia through Questbridge and don’t get matched, you absolutely can still apply RD. Questbridge college match is a version of ED, which means you cannot submit another application for ED as they are binding. However, some schools have ED due dates that are after Dec 1st (the day you find out if you are matched) and you can apply to those if they allow you to, but that is separate from QB and only available to apply to after you are not matched. QB is a different application from the common app, and are not evaluated alongside applications from the common app (although some schools want to see the common app in addition to the QB app). Hope this answered your questions!