Since I began studying at Stockholm School of Economcs the terms efficiency and effectiveness have been discussed in different contexts.
Doing things right versus doing the right things. Efficiency is connected to productivity wheras effectiveness is more goal-oriented.
During our daily reaction, we reflect over how well we have been effective, that is, done the right things, having fulfilled our intentions with our day. But also how efficient we have been. Looking threw my reactions I have noticed that during hectical periods, like exam periods, my intentions are concentrated upon doing as much as possible. When I am not fulfilling what I have planned, I get more stressed and are studying less effective. I end up being in a catch 22, where I forget that it is more important that I understand what I read than how productive I am. Therefore, in order to be able to rate how well I have fulfilled my intentions, I believe that I need to start focusing on both efficency and effectiveness during exam periods.