Yes, but that's rather difficult at this point for Nebraska. They haven't played a middling type Big Ten team (like Purdue) yet. They've played two of the lowest ranked Big Ten teams, lost to one of them (their first game) and overwhelmed the other. They blew out an FCS team and beat a MACC team handily. On the other hand, the good teams they've played (Oklahoma, Michigan State, and Michigan) are all undefeated and all should be Top 10 teams in the new poll. They've played all of those teams closely so at this point you have to look for quality play in their losses to get an estimation of them.
Nebraska's statistical conference rankings are pretty solid. Offense: points scored per game (4th), total offense per game (2nd), yards per play (3rd). Defense: points allowed per game (5th), offensive yards per game given up (7th), yards per play given up (6th). Their offense is a bit better ranked than their defense but their defense is still top half of the conference on all of those measures.