Table 3.
Correlation matrix between keywords and research methods.
| Methodology 1 | Methodology 2 | … | Methodology N | |
|---|---|---|---|---|
| KP 1 | R1,1 | R1.2 | … | R1,N |
| KP 2 | R2,1 | R2,2 | … | R2,N |
| KP 3 | R3,1 | R3,2 | … | R3,N |
| … | … | … | … | |
| KP N | RM1 | RM2 | … | RMN |
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