WeCP uses a multi-faceted approach to mitigate bias when leveraging AI to evaluate essay responses. Replacing human graders with AI introduces efficiency, but key constraints remain: maintaining fairness and accuracy, and avoiding the amplification of existing biases. The biases here aren't necessarily demographic, but rather evaluation biases. For example, an AI might unfairly prioritize elaborate language over insightful content, or favor certain writing styles prevalent in its training data. Our goal is to mitigate these potential evaluation asymmetries. We employ a strategy that focuses on evaluating the core competencies demonstrated in the essay, rather than superficial aspects.
We then focus on the "Substance Over Style" principle. This is critical. The AI's evaluation shouldn't be swayed by just eloquent phrasing or sophisticated vocabulary if the underlying argument or understanding is weak. The idea of training AI to focus on core competencies comes into play. You want to train a model to assess the essay based on criteria that are difficult to manipulate without genuine understanding, but independent of stylistic preferences. This ensures that the score reflects the actual grasp of the topic and the strength of the arguments presented, not just how well it's "dressed up." The "adversary" in this case could be seen as the inherent tendency of some AI models to latch onto easily quantifiable surface features.
The AI model analyzes essay responses by breaking them down into key components. It's not just looking at word choice; it's evaluating the logical flow of arguments, the evidence provided, the clarity of thought, and the overall coherence in addressing the prompt. A crucial element is ensuring the AI is trained on a diverse dataset of high-quality essays, representing various writing styles and perspectives, to prevent it from inadvertently favoring a narrow range of expression. Furthermore, WeCP might employ techniques like debiasing the training data to remove any existing biases present in the human-graded examples used to train the AI. This could involve techniques like re-weighting examples or using adversarial learning to make the AI less sensitive to potentially biased features in the training data. The aim is for the AI to identify and reward genuine understanding and critical thinking, regardless of the specific writing style employed. By focusing on the substance, WeCP strives to create a fairer and more accurate evaluation process for essay-type questions using AI.