An issue for assessment quality in higher education
In explaining the focus of this study, two research questions were asked in the first section of the previous chapter: How do marks awarded to NS and NNS essays vary according to essay language group? and How does assessors’ evaluative verbal commentary on NS and NNS essays vary according to essay language group? This chapter provides answers to these questions in three main sections, each of which compares assessors’ responses to the essays by language group – the first section comparing the marks; the second, the verbal commentary at the level of the major coding categories; and the third, the verbal commentary at the sub-category level. The findings reported in the first of these sections raise a third issue – variability of marks – which is examined in the last section of the chapter in terms of i) the range of marks given to each essay and how this is manifest in the two language groups, and ii) the reliability of assessors’ marks.
During the marking sessions, the ten assessors awarded a score out of 30 to the ten essays, resulting in a total of 100 assessments – 50 for the NS essays, and 50 for the NNS essays. The first part of this section compares the marks for each language group, reporting the average scores and grade distributions. Following this, to examine the extent of within group variation, the average marks are reported for the individual essays in each language group (each essay having...
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