alleryWhich factor lowers the reliability of an examination?
AClear grading rubric
BWell trained markers
CVague marking instructions
DTwo equivalent test forms
Answer & Solution
Correct answer: C. Vague marking instructions
1. Reliability suffers when marking varies from one marker to another.
2. Vague marking instructions are named as a factor affecting it.
3. Clear rubrics and trained markers raise reliability instead.
_Source: Wikipedia, Educational assessment, Reliability_
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