[Retracted] Research on the Diagnosis of Students’ Cognitive Level Based on Deep Learning

Table 2

Comprehensive evaluation results of students of different grades in 2019 (data source: measured in this study).

Grade grouping	Course difficulty	Mastery degree	Curriculum affinity
80∼100	66.3	78.5	79.9
60∼80	74.1	73.3	70.6
<60	84.5	68.3	54.2