When an educator unfairly grades a student they personally dislike, this is called:

The term that describes the situation where an educator grades a student unfairly due to personal feelings or bias is commonly referred to as "grading with spite." This concept highlights the idea that personal feelings, such as dislike for a student, can influence objective assessment, leading to a grading decision that is not based on the student's actual performance or abilities.

When an educator allows personal animosities to interfere with their professional responsibilities, it undermines the integrity of the grading system and can significantly impact a student's academic career. Such practices can create an environment of distrust and unfairness, ultimately harming the educational experience.

The other choices do not accurately capture this scenario. "Grading by fetish" and "grading by assumption" do not directly address the aspect of personal bias that is central to unfair grading practices. "Grading by disposition" may suggest a certain bias but doesn't specifically imply negative motivation as clearly as grading with spite does. Therefore, "grading with spite" is the most precise term for this unethical grading behavior.