EFL teachers need to apply reliable assessment and scoring procedures to minimize or even eliminate impressionistic attitudes and individual biases and eventually to ensure fair evaluation of students' actual achievements.
Dear Mr Sami Al-Asadi, Thanks for this question.In fact I don't know what are the norms of the Arabian countries for the English assessment. English is the international language and it has the global appeal for the common , generous and even mostly huge vocabulary stocks.Time to time new words are being adding in the stock to enrich! so , for the Arabian institution the norms of the assessment should be fixed in that level so that quality education in English should be ensured.
On the other hand, English is not a suitable language to grip easily for its huge synonymous nature and appropriateness of the selection of words even to the natives! So, pls don't be serious the perfectness English words application, it norms and its use in academic and daily life, rather think about the communicative tools to just express the meanings , just it.
I am very fond of the 6plus1 traits model for evaluating writing, which you will see in the attached file. It was intended for primary language writing, but I think that it can be used or adapted for second/foreign language writing.
I have also adapted the idea to oroal proficiency, as you can see here: Data Oral Proficiency Rubric
Thank you so much for recommending such a writing rubric. It really has with well-defined criteria. Each criteria is sufficiently delineated with descriptors that distinguish between students' performance levels . It thus has the potential to bring increased consistency and reliability to the task of judging and scoring students; written products .