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Table 6 The factors of the sources of unreliability of a test scale, the corresponding items, and the Cronbach alpha reliabilities

From: Designing and validating a scale for evaluating the sources of unreliability of a high-stakes test

Factors

 

Item numbers

Cronbach α

Factor 1

Effect of test-takers

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

.84

Factor 2

Structure of the test and external concerns

17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

.81

Factor 3

Administration conditions of the test

30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42

.83

Factor 4

Role of proctors

43, 44, 45, 46

.70