“…This type of design typically involved comparing assessment scores between a POGIL classroom and a traditional lecture classroom. The two assessments most commonly used for this comparison were student scores on instructor-generated exams and quizzes ,− ,,,,,,,,,,,,,,,,− , and ACS standardized exam scores. ,,,,,, Other measures included drop/fail/withdraw numbers and course grades. ,,,,, A few studies utilized other instruments such as concept inventories and assessments of critical thinking skills. ,,, The results of control-treatment studies such as these generally revealed that, relative to non-POGIL instruction, POGIL had a positive impact on students’ content knowledge. The findings also found an increase in the number of students with “A” grades ,, or international equivalents, and a decrease in the number of students in the withdraw/drop/fail category .…”