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Table 1 Internal consistency for TPB constructs per behaviour

From: Knowledge, attitudes, beliefs and behaviour intentions for three bowel management practices in intensive care: effects of a targeted protocol implementation for nursing and medical staff

Factor Cronbach’s alpha
  Assessment of bowel function (n = 88) Performing a PR exam (n = 88) Administration of enema (n = 88)
Behaviour Intention (3 items) 0.874 0.926 0.909
Attitude (4 items) 0.839 0.795 0.848
Subjective Norm (3 items) 0.739 0.753 0.773
Perceived behavioural control (4 items) 0.357 0.458 0.578
0.396 # 0.652 # 0.737 #
Perceived behavioural control: controllability (2 items) 0.370 0.253 0.263
Perceived behavioural control: self-efficacy (2 items) 0.251 0.580 0.722
  1. # if delete ‘factors outside my control’ item.