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Language Testing in Asia

Table 7 Effect of each facet on total score variance (delayed post-training)

From: Investigating the effect of classroom-based feedback on speaking assessment: a multifaceted Rasch analysis

No.

Facets identified in the study

Percentage effect on total score variance

1

Test taker ability

61.85

2

Rater severity

22.51

3

Group expertise

9.29

4

Test version

2.67

5

Task difficulty

3.04

6

Scale categories

0.64

  

100

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