The effectiveness of class length on high school classroom efficacy This paper should entail how the length of a class is affects the efficacy of the students within the classroom. It should also compare the success of students within 80 minute (approximate) classrooms to standard 40 minute (approximate) classrooms. It should primarily focus on studies that have been done regarding this subject and highlight any major flaws, deficiencies or shortcomings of the studies. Additionally the last page should discuss possible ways to expand on these studies for the future.