This study aims to analyze how the perception of the extracurricular program differs according to both the grade level of the students and the campus being attended. The results of this study are as follows: concerning DIF by grade level, the perception of the extracurricular program was higher for students in the first grade in regards to 1 item pertaining to the effectiveness of their extracurricular work, and 2 of the items connected to the effectiveness of the online extracurricular program. Moreover, the perception of the extracurricular program was higher for students in the 2nd, 3rd and 4th grades regarding the 4 items requiring the improvement of the extracurricular program. Second, concerning DIF(Differential Item Functioning) by campus, the results are as follows: students attending a campus in Suwon answered higher when it came to the recognition of 1 item within their extracurricular work, while students attending a campus in Seoul answered higher regarding 4 items. The 4 items pertaining to the effectiveness of their extracurricular work were higher for Suwon campus students as far as the number of responses were concerned. Students attending the campus in Suwon responded in higher numbers to questions regarding the effectiveness of the online program, just as with their responses regarding their offline work. 1 item regarding the comparison and the improvement of the curriculum was higher for students of the Seoul campus. However, the three questions pertaining to the students attending the Suwon campus were answered in greater numbers.Through this study, the extracurricular work of students should be operated so that various programs tailored to their needs can be designed. In addition, efforts are needed to qualitatively check and quantitatively supplement online programs that can be taken without any space constraints.