| Grade | Description |
| < 5 | No understanding of the chosen paper, no external research evidence. |
| 5-7 | Basic understanding of the paper, major contribution and deficiency of the paper are not recognised and commented. Lack of relevant research evidence. |
| 8-10 | Good understanding of the paper, major contribution and deficiency of the paper have been recognised, comments are appropriate but lack of adequate research evidence. |
| 11-13 | Good understanding of the paper, major contribution and deficiency of the paper have
been recognised. Comments are appropriate and with adequate research evidence. Constructive suggestions are attempted. |
| 14-16 | Good understanding of the paper, appropriately judge the contribution of the paper with reasons, fully aware of the deficiencies of the paper with adequate evidence. Comments are appropriate and constructive suggestions are valuable. Professional style of referee report. |