On average, adolescent student's grades improve during the course of schooling.

a. True

B. False

The best answer for your question: On average, adolescent students' grades improve during the course of schooling, would be: True.

Explanation:

Statistical data shows that although this statement will highly depend on how the school system works to improve the critical thinking and problem-solving skills of adolescents, as well as how well the programs take into account the potentiation of individual intelligence types, there has been an improvement in the overall scores obtained by adolescents as the schooling progresses. In part, a reason is that, aside from school programs having become more student-oriented, and less standardized, there has been the creation of advanced-skilled programs whose benefits in the future further motivate adolescents to improve their scores.