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Table 4 Internal reliability of the 20-item HEAS-SP (N = 331)

From: Development and validation of the Health Education Adherence Scale for Stroke Patients: a cross-sectional study

Items Corrected item-total correlation Item-subscale
Correlation
Cronbach’s α M ± SD Range
C1 0.621 0.792 0.916 18.89 ± 6.21 6–30
C2 0.592 0.770
C3 0.638 0.801
C4 0.559 0.780
C5 0.575 0.774
C6 0.565 0.665
B1 0.504 0.824 0.901 23.34 ± 5.79 5–25
B2 0.550 0.907
B3 0.570 0.912
B4 0.550 0.873
B5 0.466 0.611
A3 0.405 0.604 0.867 17.01 ± 3.94 5–25
A4 0.496 0.747
A5 0.529 0.756
A6 0.524 0.768
A7 0.489 0.584
D6 0.429 0.485 0.709 12.45 ± 3.47 4–20
D7 0.408 0.462
D9 0.455 0.506
D11 0.475 0.538
Total scale 0.896 69.45 ± 13.21 20–100