Daron,
You are right, that is what it appears like. It is certainly more difficult to assess where students are in the online environment. We need to get more creative. Maybe have students complete more, shorter assignments that allow us as instructors to assess more often and in shorter steps in the process to try to establish where we lose the students and where their problems arise. It also might be even more important to get the students to connect with us in a LIVE session as soon as we see they are having issues and get them back on track before they get too far in down the wrong path in their learning.
Herbert Brown III