We successfully collected data from the questionnaire and interviews, and we compared the selection distribution of the different groups through two basic questions. The p-value for question one was 0.1225, while that for the second question was 0.0672. The data indicated that, while there was no significant difference between the two years, there were still some minor differences. Thus, discussing the details of the data on the overall performance of hybrid/online courses during the COVID-19 period is still necessary. The detailed data from 2020 and 2021 are presented in the following sections.
4.1. Data Result (2020)
Table 3 displays the overall view of hybrid/online courses among the Group A participants based on the two basic questions on the questionnaire form. The data indicated that 75.32% of participants had a positive attitude toward the course quality, 17.93% had neutral opinions, and 6.75% had negative views. According to the second question, 71.94% of participants had a positive opinion about the learning knowledge gained through the hybrid/online study, 19.62% had neutral opinions, and 8.44% had negative comments. These results suggest that most participants had a positive attitude toward hybrid/online courses and believed that they can successfully deliver knowledge. However, 24.68–28.06% of participants still had a neutral or negative attitude, necessitating further analysis of the advantages and disadvantages of hybrid/online NEE courses.
We selected the participants who selected the positive option for both questions. These positive participants (N = 338) were asked about the advantages of online/hybrid NEE. To obtain the maximum number of opinions from participants, they could either select a specific option or type in any comments in the text panel. The detailed options were as follows: online resources and offline tutoring can help to understand knowledge more deeply, independent learning schedule, and an interesting interaction mode between teachers and students.
Table 4 lists the primary reasons why the positive group believed that online/hybrid NEE was better for them. The results show that 54.43% of the participants believed that the mix of online resources and offline tutoring is the primary reason for understanding professional knowledge thoroughly, while 36.09% of the participants believed that the hybrid course is conducive to a flexible arrangement of study time. In the additional option, 5.62% of the participants highlighted that they could watch replay videos from the course. We combined the schedule and replay groups (41.71%), as watching videos should be considered part of the flexible arrangement of a learning schedule. Additionally, 1.77% of the participants selected the interesting interaction mode, while 2.07% indicated the teacher’s teaching quality.
According to the views of the participants, the flexibility to arrange the learning time and the combination of online resources and offline tutoring are the main advantages of online/hybrid NEE courses. However, there are a small number of people who preferred blended teaching with better teacher–student interactions. The new mode of online teacher–student interaction is a significant feature of online/hybrid learning; however, students did not seem to agree with this. Hence, the discrepancy between theory and the current state of online/hybrid NEE should be analyzed.
All the negative/neutral participants agreed to join in the interviews.
Table 5 presents the results of the interviews with the negative/neutral participants (N = 136). Noting that the considered courses usually require students to complete projects in small groups, the results indicated that 58.82% of participants believed that lacking communication with team members is the most significant issue in online/hybrid education. Additionally, 23.52% of the students felt that the course needs a teacher Q&A session. In comparison, only 1.77% believed that the new model of teacher–student interaction is an advantage of the online/hybrid course, as indicated in the branching questionnaire. As such, optimizing smooth teacher–student/student–student interactions and providing sufficient online Q&A tutoring interaction is an important issue in online/hybrid education. Furthermore, 17.64% of the students stated that the course content lacks a clear connection between online and on-site study.
4.2. Data Result (2021)
In order to better track the effectiveness of online/hybrid education, a second survey was conducted in 2021, with the aim of using comparative measurement to analyze whether online/hybrid education had improved. In July 2021, an investigation was started in Group B (N = 313).
Table 6 displays that 81.15–83.38% of the students positively confirmed the course quality and knowledge acquisition, while 12.1–12.78% held neutral opinions and 4.47–6.07% returned negative comments. Compared to 2020, the percentage of negative/neutral opinions decreased. Therefore, online/hybrid education can be improved in terms of quality with more time for preparation.
We asked the Group B participants an additional question, given their two years of experience with online/hybrid learning.
Table 7 reveals that, while 81.15–83.38% of participants had a positive view of blended courses, only 66.13% of participants agreed that they are better than traditional classes. Additionally, only 72.52% of students preferred online/hybrid courses over traditional ones. Although 10.67–14.50% acknowledged the positive impact of online/hybrid NEE, they did not believe that it surpasses traditional teaching.
We chose the participants who selected the positive option for all four questions. The positive participants (N = 198) received a question about the advantages of online/blended education.
Table 8 lists the primary reasons why the positive group believed that online/hybrid NEE is better for them.
The table indicates that 42.93% of participants believed that the combination of online resources and offline tutoring is the main reason for a thorough understanding of professional knowledge, while 49.25% of participants (including 1.67% who selected the option for watching replay videos) believed that the hybrid course allows for a flexible arrangement of study time. Additionally, 2.52% of participants chose the option for an interesting interaction mode, while 4.54% selected the option for a teacher’s teaching quality. Although the percentage of participants who chose the interaction mode had increased from 2.07% to 4.54%, the number remained low. Thus, the need to analyze the discrepancy between online/hybrid education theory and practice was reinforced.
All the negative/neutral participants in Group B also agreed to join in the interviews.
Table 9 displays the results of the interviews with the negative or neutral participants (N = 115). The results indicate that 50.43% of participants believed that insufficient communication with team members is the most significant problem in online/hybrid education. In addition, 16.52% of the students thought that the course needs a Q&A session, while 7.83% reflected that, even though a Q&A session may exist, the online platform restricts the ability to present questions to teachers. Thus, optimizing teacher–student/student–student interaction and providing sufficient online tutoring interaction through Q&A sessions remains a crucial issue in online/hybrid education. Additionally, 10.43% of the students reported that the course content needs to be better connected between the online and in-person components, and 14.78% strongly believed that the online course lacks methods to restrict student behavior.
4.3. Data Analysis
According to the investigation, it is significant that most participants (students) had positive attitudes toward online/hybrid education regarding acquiring professional knowledge from related NEE courses. We determined two primary reasons why the undergraduates preferred online/hybrid courses: the self-arranged study schedule and the combination of online resources and on-site tutoring. However, there were also many negative opinions on online/hybrid education. We could conclude through the communicated aspects that the primary weakness was insufficient and burdensome communication/interaction with teammates (classmates) and teachers. Communication is the key element in providing a smooth experience and leading students to efficiently absorb professional knowledge [
39]. Considering the above data, it is necessary to reconsider how to enhance the study experience in online/hybrid education. Thus, we propose the following paths, which may serve to narrow the gap between theory and reality.
Content Arrangement in Online/Hybrid Courses: It is necessary to divide online and on-site teaching content while designing course schedules. Online content should be at the front-end of the industry, while on-site tutoring should focus on answering questions from students. In this way, the student can clearly learn the knowledge through on-site study and broaden their horizons through online education.
Building Abundant Online Resources: One of the most significant advantages of online/hybrid education is that students can play back the course content on online platforms. Suppose that a teacher does not build a knowledge library with abundant resources and, instead, simply hosts live classes through Zoom or another meeting software. In this case, the study mode is no different from traditional teaching. Therefore, online/hybrid courses should include abundant teaching resources on the online platform, such as weekly coursework and various resources such as course video recordings, course practice case videos, and so on. Consequently, students can independently arrange a time to use the resources for practical retrospective study after class.
Convenient Online Communication Mode: Although the course arranges on-site tutoring, the online platform should also have relevant communication modes in order to help the teacher to answer urgent questions from students. As such, course designers should consider using an efficient online tutoring platform. The platform should not merely provide simple text communication, but should also contain a professional online experimental section for students. Teachers can provide visual feedback on questions and even remotely control the students’ computers to solve their issues in real time.
Comprehensive Project Coordination Guidance: NEE courses are different from traditional courses, which are typically biased toward theory. By contrast, NEE courses include a lot of experimental or practical content. Therefore, the course assessment usually takes project development as the assessment basis. However, many students do not have rich teamwork experience in online communication. Online teamwork of the sheep-herding style can easily cause communication barriers, and teammates may not contribute equally. Therefore, online communication poses a key challenge for students. Therefore, teachers must formulate appropriate project development content based on individual skills and the sizes of teams. In addition, it is also necessary to teach related project management knowledge such that students can gain experience in team management in related fields through their coursework. The course should not merely teach professional skills, but also guide the student on how to communicate in their career.
In summary, a successful online/hybrid NEE course should include more than just traditional teaching content. More importantly, teachers need to consider a broader range of aspects for online/hybrid education, including content arrangement, abundant online resources, online/on-site tutoring mode, and guiding students in efficient teamwork. A successful online/hybrid NEE course should not merely allow students to learn the knowledge of the course, but also guide them to understand the professional frontier and foster their teamwork communication ability. This will inevitably help them to lay a solid practical foundation for their future careers.