Many teachers believe frequent quizzes(小测验) help students better grasp classroom material. Crede, an associate professor of psychology, was skeptical that something as simple as a quiz could positively affect students' academic performance. He decided to dig deeper and conduct an analytic study of existing research to see if there was any proof to the idea. What he discovered truly surprised him.
Crede analyzed data from previously published studies that examined 52 classes with almost 8, 000 students, primarily college-level courses, to determine if frequent quizzes improved the students' academic performance. Laboratory settings were kept out of the study because Crede wanted to observe whether similar studies from labs would apply to general classrooms.
Crede discovered that when students are quizzed over class material at least once a week, they tend to perform better on midterm and final exams compared to students who did not take quizzes. He also found that students who took frequent quizzes were less likely to fail the class, especially if they were struggling with the course content. Students who struggle the most in a class seem to benefit the greatest from frequent quizzes. The other surprising thing was how much quizzes helped reduce failure rates in classes. The chances of passing a class went through the roof where instructors used this. In addition to quiz frequency, another factor that seemed to positively affect students' performance was immediate feedback from instructors. Also, quizzes that required students to answer with written responses proved more beneficial to their understanding of class material compared to multiple-choice questions.
Asking teachers to grade written quizzes daily or weekly may discourage some from carrying them out in their classes. Instead, it is recommended that instructors give online quizzes that can be automatically graded by a course management system. Quiz attributes(属性) proved insignificant in the study, including whether the tests were pop quizzes or planned, or if they were online or on paper.