Abstract
Freeform comments as a means of providing formative feedback on engineering problems, from the perspective of feedback providers (i.e. assessors), is examined. The aim of this research is to collect and analyze assessors’ ratings on the usability of this type of task. Two course topics with different error loads in the sample solutions were used as the basis for the work. Assessors were divided into two groups: Group 1 received an evaluation package containing first year mechanics students’ test solutions with a high error load (Error1=32), while Group 2 received first year circuits students’ test solutions with low error load (Error2=11). Assessment time was held constant (ttot=20min). A standard instrument for usability was utilized. Analysis of the survey data from the assessors (n1=11, n2=19) revealed some significant differences between the two groups. In particular, Group 1 reported a lower degree of perceived consistency in marking relative to Group 2.
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