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ผลการวิเคราะห์ค่าความเชื่อมั่นของเครื่องมือที่ใช้ในการวิจัยในรายข้อ ด้วยสัมประสิทธิ์ α
(Alpha coefficient) ของ Cronbach

Item-Total Statistics

Scale Mean if Item Scale Variance if Item Corrected Item-Total Cronbach's Alpha if Item
Deleted Deleted Correlation Deleted

x1 422.69492 5141.342 .621 .989
x2 422.68475 5136.870 .647 .989
x3 422.67797 5135.090 .678 .989
x4 422.75254 5128.282 .698 .989
x5 422.74576 5127.680 .660 .989
x6 422.73559 5130.352 .635 .989
x7 422.82034 5130.937 .681 .989
x8 422.81356 5131.574 .693 .989
x9 422.76271 5122.535 .730 .989
x10 422.75593 5131.437 .678 .989
x11 422.66102 5136.232 .682 .989
x12 422.79661 5118.952 .740 .989
x13 422.77288 5124.122 .692 .989
x14 422.89153 5126.600 .660 .989
x15 423.00339 5125.949 .637 .989
x16 422.96949 5142.383 .578 .989
x17 422.94915 5144.157 .572 .989
x18 423.12542 5144.233 .489 .989
x19 423.00678 5140.619 .585 .989
x20 422.89153 5129.396 .682 .989
x21 422.82373 5128.554 .705 .989
x22 423.01017 5137.588 .594 .989
x23 422.89153 5141.981 .596 .989
x24 422.83729 5137.810 .636 .989
x25 422.83729 5130.388 .676 .989
x26 422.81695 5131.490 .705 .989
x27 422.69153 5143.513 .538 .989
x28 422.83390 5121.180 .755 .989
x29 422.77966 5115.757 .788 .989
x30 422.67797 5126.205 .666 .989
x31 422.75593 5128.940 .727 .989
x32 422.78305 5136.483 .678 .989
x33 422.57288 5129.756 .666 .989
x34 422.87797 5127.237 .657 .989
x35 422.65424 5127.227 .681 .989
x36 422.73559 5122.284 .753 .989