Choosing Evidence: The Borderline C Versus D
An assessor is finalising a student's grade on an externally assessed written task. The student's script sits on the borderline between two grade bands. On content, the student addresses most of the task but omits one required element. On language, the writing is generally accurate with a few errors that do not impede meaning, and the range is adequate but not varied. The assessor's first instinct is to award the higher band because the student 'worked hard and improved a lot this year'. A colleague points out that improvement over the year is not a criterion. The assessor must also decide whether the omitted element is severe enough to drop the content mark a full band or only part of a band.
1. Explain how the assessor should resolve the borderline decision using only the criteria.
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The assessor should weigh each criterion separately against the descriptors and then apply the band rules, not a global impression.
- Content: The omitted required element is a real shortfall. The question is whether the descriptors for the higher band require all elements or most elements. If the higher band requires full coverage, the omission caps the content mark at the lower band; if it allows partial coverage, the assessor must judge whether the omission is minor or substantial.
- Language: Accuracy is a strength here (errors do not impede meaning), but range is only adequate. If the higher band requires varied range, this criterion may sit at the lower band even though accuracy is strong.
The final grade follows from the pattern across criteria, not from any single impression. 'Worked hard' and 'improved' are not criteria and must be set aside - they cannot move a borderline script upward.
2. A colleague suggests giving the higher band because the student improved. Construct the strongest counter-argument.
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Counter-argument:
- Improvement is not a descriptor. The criteria describe the quality of the final performance, not the trajectory. Awarding for improvement would make the grade incomparable with other candidates judged on the same script quality.
- It creates an unfair advantage. A student who started high and stayed high would be disadvantaged against a student who started low and improved to the same level. The grade would measure history, not attainment.
- It is unverifiable at external assessment. The external assessor has no reliable evidence of the student's starting point; improvement claims rest on teacher memory and are not auditable.
- It invites inconsistency. If improvement can lift a borderline script, assessors must decide how much improvement justifies how much lift - a subjective scale with no anchor.
The honest response to a hard-working student is to mark the script accurately and give feedback on what would raise the next performance, not to award a band the evidence does not support.