Table 6
Initial solution of nonparametric tests in Dimension 4 following criteria for item elimination.
| Items | Mean | Standard Deviation | Item-total correlation corrected | Cronbach’s alpha if the element is removed | Skewness (ET=0.119) | Kurtosis (ET=0.238) | Eliminate |
| q33 | 2.04 | 0.887 | .272 | .902 | 0.769 | 0.611 | 3 |
| q34 | 0.25 | 0.431 | .246 | .899 | 1.181 | –0.608 | 2 |
| q35 | 3.00 | 0.196 | -.039 | .902 | 0 | 23.419 | 1 |
| q37 | 2.93 | 1.106 | .691 | .884 | –0.861 | 0.016 | |
| q37 | 2.01 | 1.162 | .484 | .896 | –0.06 | –0.795 | 4 |
| q38 | 3.50 | 0.814 | .687 | .884 | –2.15 | 5.504 | |
| q39 | 3.11 | 0.944 | .729 | .882 | –1.123 | 1.249 | |
| q40 | 3.74 | 0.630 | .646 | .888 | –3.609 | 16.511 | 5 |
| q46 | 3.10 | 0.895 | .624 | .887 | –1.136 | 1.634 | |
| q42 | 3.22 | 0.893 | .726 | .882 | –1.39 | 2.377 | |
| q43 | 3.08 | 0.956 | .754 | .880 | –1.123 | 1.302 | |
| q44 | 3.08 | 0.986 | .704 | .883 | –1.149 | 1.129 | |
| q45 | 3.42 | 0.811 | .717 | .883 | –1.786 | 4.084 | |
| q36 | 3.28 | 0.900 | .692 | .884 | –1.587 | 3.075 | |
| Reliability statistics | |||||||
| Cronbach’s alpha .896 | Cronbach’s alpha based on typed items .884 | No. of elements 14 | |||||
| Analysis of the Final Proposal as items of Dimension 4 – BP Percussion as CE | |||||||
| Items | Average of the scale if the element is eliminated | Variance of the scale if the element is eliminated | Item-total correlation corrected | Squared multiple correlation | q36 | ||
| q36 | 25.79 | 32.470 | .643 | .480 | .914 | ||
| q38 | 25.22 | 34.670 | .674 | .536 | .910 | ||
| q39 | 25.61 | 32.923 | .737 | .586 | .905 | ||
| q41 | 25.62 | 34.480 | .620 | .430 | .913 | ||
| q42 | 25.50 | 33.469 | .728 | .557 | .906 | ||
| q43 | 25.64 | 32.409 | .778 | .645 | .902 | ||
| q44 | 25.64 | 32.475 | .743 | .647 | .905 | ||
| q45 | 25.30 | 34.032 | .751 | .676 | .905 | ||
| q46 | 25.44 | 33.365 | .733 | .643 | .906 | ||
| Reliability statistics | |||||||
| Cronbach’s alpha .917 | Cronbach’s alpha based on typed items .919 | No. of elements 9 | |||||
| Note: q: question, numbers 33-46: question identifier number. As criteria for the elimination of items, homogeneous means, standard deviation far from zero, item-total correlation greater than .30, skewness less than 2 and kurtosis less than 7 were considered as criteria for the elimination of items. | |||||||
