Exploring the Effectiveness of a Measurement Error Tutorial in Helping Teachers Understand Score Report Results
2016
The goal of this study was to explore the effectiveness of a short web-based tutorial in helping teachers to better understand the portrayal of measurement error in test score reports. The short video tutorial included both verbal and graphical representations of measurement error. Results showed a significant difference in comprehension scores between each of two tutorial groups (basic and enhanced) and the control group (no tutorial) but not between the two tutorial groups. Results also provided evidence of teachers' misconceptions about the meaning of measurement error and confidence bands.
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