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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: J Cardiovasc Nurs. 2014 May-Jun;29(3):E11–E20. doi: 10.1097/JCN.0b013e3182a3fd46

Table 2.

Reliabilities of HBP SCP scales

Scale No. of items (response format) Item mean (SD) Item-total correlation (Range) Cronbach’s alpha
Behavior 20 (4-point [1–4] Likert) 2.79 (0.38) .20 – .63 .83
Motivation 20 (4-point [1–4] Likert) 3.58 (0.14) .46 – .70 .93
Self-Efficacy 20 (4-point [1–4] Likert) 3.47 (0.18) .40 – .74 .91