In response to a request for additional analyses, in particular reporting confidence intervals around the results, we re-analyzed the data from prior studies. This supplementary report presents the results of the additional analyses addressing classification accuracy, reliability, and criterion-related validity evidence. For ease of reference, we…

This study examined indicators of cheating on a statewide summative assessment for grades 3--8 over a 4-year period. Between year 2 and year 3 of this study, the state launched an aggressive, highly publicized investigation into cheating by educators. The basis of the investigation was an erasure analysis. The current study found that the number…