case_images: PMC7739826_01
case_images: The cumulative research process.
case_images: fspor-02-528979-g0001.jpg
case_images: PMC7739826_01_fspor-02-528979-g0001.jpg
case_images: F1
case_images: It included observations from seven PE lessons (1 lesson = 60 min), interviews and informal conversations with two male PE teachers, five focus group interviews with 18 students, 13 individual interviews with students, and a supplementary self-reporting survey (Yin,) based on prior preliminary research findings from the abovementioned methods (Figure 1).