What are some common biases that can affect assessments, and how can you minimize them?

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Minimizing bias in assessments comes from standardizing how you judge work and using multiple perspectives. Relying on a single evaluator's subjective judgment can magnify personal preferences and unfairly skew scores. Ignoring biases or avoiding explicit criteria leaves room for inconsistent and arbitrary scoring. Using rubrics with explicit criteria clarifies what counts as different levels of performance, so everyone judges by the same standards. Involving multiple evaluators distributes individual biases and increases fairness. Calibration sessions where evaluators compare scores on sample work and discuss scoring decisions align expectations and reduce drift over time. Put together, these practices cut down on halo effects, leniency or stringency biases, and inconsistent judgments, making assessments more reliable and equitable.