The goal of a Triplebyte assessment is to allow engineers to demonstrate their true skill levels and help employers identify skilled engineers to reach out to. When we only have a short quiz to achieve this, we need to extract as much data as we can out of the information that we have.

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Triplebyte uses multicategorical Item Response Theory (IRT) to score questions. In IRT models, responses are categorized as correct or incorrect, and we model the probability of getting a correct response as a function of underlying skill. The additional categories add granularity to our scoring scale, which translates to more precision in our score estimates.

How we wring every last bit of data out of a short quiz