What does the mGTS really mean?

Andrea ChesterUncategorizedLeave a Comment

The University is increasingly using mean CES scores rather than the % agreement that we have used in the past. The mean GTS and mean OSI are located at the bottom of p.1 of your CES. Scores on both scales can range from 1 to 5.

The following explanation of the mean CES has been provided by RMIT Studios.

Percent agree is a coarse representation of the OSI or GTS that can degrade or inflate a teacher’s scores. The table below shows three teachers all receiving an OSI of 40% Percent Agree. But with the mOSI it’s possible to see more than 1.5 points of variation between them. Teacher C is receiving an OSI of 40% Percent Agree despite no negative feedback from students and a lowest score of 3 (Neither Agree nor Disagree). The Percent Agreement calculation is weighted towards a negative result. A score of 3 (neither agree nor disagree) counts as a negative in a % agree calculation.

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