Figure 2
The flowchart begins with two sources of research articles: 942 from a database search and 1,220 from Google Scholar. These are combined, and duplicates are removed, resulting in 957 articles. These 957 articles are then screened, and 873 are excluded for being related to disciplines other than performance. This leaves 84 articles for eligibility. Of these, 37 are further excluded due to being qualitative research, lacking data for direct effect, using the same data, or being low-quality papers. This results in 47 articles for final screening, with a total of 14,163 observations.Prisma flow diagram. Source: Authors’ own work