Open ended or subjective questions: For example, "What is the meaning of life?" or "Describe your ideal vacation."
Short answer questions requiring interpretation: If there's no single clear answer and different interpretations are valid, consistency in grading can be difficult.
Questions with factual errors or ambiguities: If the question itself contains mistakes or unclear wording, it can be confusing for students and lead to inconsistent interpretations and grading.
Time constraints: When graders are rushed, they might not be able to dedicate enough time to each response, potentially impacting the accuracy and consistency of their scoring.