Research Article

New Indices for Refining Multiple Choice Questions

Table 2

Critical values for coefficient for small number of errors and a significance level of 2.5%.

+ 0.10.20.30.40.5 + 0.1

13.002.001.531.221.00262.22
21.892.832.161.731.41272.76
33.272.022.652.121.73282.65
42.672.751.962.452.00292.54
52.242.242.441.832.24302.43
63.272.861.962.172.45312.33
72.902.462.392.471.89322.24
82.592.122.012.022.12332.73
92.332.672.402.312.33342.63
103.162.372.071.941.90352.54
112.912.112.432.22362.44
122.692.592.142.47372.36
132.502.362.482.15382.27
142.322.142.22392.72
153.012.582.54402.64
162.832.382.29412.55
172.672.182.59422.47
182.512.59432.39
192.372.41442.31
202.242.24452.24
212.842.62462.65
222.702.45472.57
232.572.29482.50
242.452.65492.43
252.332.50502.36