Item | Extreme group comparison | Total correlation | Homogeneity test | Remarks | |||
Decision value | The item related to the total score | Corrected item and total relevance | The alpha value after the item is deleted | Commonality | Factor load | ||
T1 | 3.307* | #0.359** | #0.246 | 0.808 | #0.061 | #0.246 | delete |
T2 | 6.267* | 0.494** | 0.457 | 0.828 | 0.311 | 0.558 | retain |
T3 | 5.113* | 0.460** | #0.322 | 0.804 | #0.118 | #0.344 | delete |
T4 | 3.075* | #0.376** | #0.238 | 0.809 | #0.052 | #0.229 | delete |
T5 | 6.138* | 0.493** | 0.500 | 0.823 | 0.383 | 0.618 | retain |
T6 | 5.307* | 0.494** | 0.526 | 0.820 | 0.408 | 0.639 | retain |
T7 | 3.526* | 0.423** | 0.560 | 0.817 | 0.481 | 0.694 | retain |
T8 | 4.628* | 0.403** | 0.569 | 0.819 | 0.485 | 0.696 | retain |
T9 | 5.827* | 0.490** | 0.548 | 0.818 | 0.462 | 0.679 | retain |
T10 | #2.734* | #0.312** | #0.174 | 0.814 | #0.041 | #0.202 | delete |
T11 | 7.667* | 0.629** | 0.600 | 0.813 | 0.475 | 0.689 | retain |
T12 | 6.716* | 0.464** | #0.364 | 0.801 | #0.143 | #0.378 | delete |
T13 | 8.846* | 0.551** | 0.459 | 0.794 | #0.174 | #0.417 | delete |
T14 | 6.375* | 0.503** | 0.414 | 0.798 | #0.114 | #0.338 | delete |
T15 | 5.812* | 0.493** | 0.411 | 0.798 | #0.135 | #0.367 | delete |
T16 | 5.297* | 0.521** | 0.401 | 0.834 | 0.241 | 0.491 | retain |
T17 | 8.680* | 0.639** | 0.564 | 0.817 | 0.421 | 0.649 | retain |
T18 | 9.814* | 0.651** | 0.586 | 0.814 | 0.456 | 0.675 | retain |
Standard of judgment | ≥3 | ≥0.4 | ≥0.4 | ≤0.835 | ≥0.2 | ≥0.45 |
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