An Audit of Measurement Quality and Answer Bias in a Large Classroom-Poll Corpus

A study auditing a large corpus of real-time classroom polls found that while these polls form a coherent measurement scale, they generally lack high precision and present an easy assessment, with a significant portion barely differentiating student understanding. The research used item response theory to analyze 604 poll items answered over 340,000 times by 2,807 learners, assessing their quality as measurement instruments.

The quality of assessment tools directly impacts the accuracy of performance evaluation and the effectiveness of educational or training programs. Understanding the measurement quality of widely used tools like real-time polls is critical for ensuring that data collected truly reflects knowledge or skill acquisition and informs strategic decisions about curriculum and learning design.

Classroom polls, despite widespread use and automated generation, are rarely evaluated for measurement quality.

Forward consideration, not a verified fact.