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. 2023 Jan 5;20(2):970. doi: 10.3390/ijerph20020970

Table 2.

Item analysis: descriptive and frequency for items.

Response Frequency M SD Sk Ku AD
Options 1 2 3 4 5 6 7
Items
ctf1 18 16 28 21 84 44 24 4.55 1.67 −0.62 0.43 8.94
ctf2 13 15 23 21 77 51 35 4.81 1.65 −0.71 0.22 8.51
ctf3 17 21 24 26 73 48 26 4.55 1.71 −0.56 0.59 7.78
ctf4 20 28 27 20 78 46 16 4.31 1.73 −0.48 0.85 9.20
ctf5 71 50 40 38 26 5 5 2.71 1.57 0.63 −0.44 8.975
ctf6 73 34 22 79 19 6 2 2.84 1.54 0.19 −1.07 13.01
ctf7 92 49 36 43 10 4 1 2.34 1.38 0.73 −0.35 13.45

Note: Sk is the skewness coefficient, Ku is the kurtosis coefficient, and AD is the Anderson–Darling normality test.