Development and preliminary evaluation of the validity and reliability of a revised illness perception questionnaire for healthcare professionals

Table 3 Cronbach’s alpha values for the four patient vignettes

Dimensions IPQ-R HP	Alpha value Vignette 1	Alpha value Vignette 2	Alpha value Vignette 3	Alpha value Vignette 4	Alpha value All vignettes
Consequences	0.77	0.81	0.73	0.83	0.78
Timeline acute-chronic	0.89	0.67	0.78	0.75	0.77
Personal control	0.80	0.88	0.77	0.76	0.80
Treatment control	0.48	0.66	0.30	0.54	0.50
Illness coherence	0.77	0.63	0.75	0.86	0.75
Timeline cyclical	0.80	0.72	0.84	0.84	0.80
Emotional representations	0.86	0.85	0.93	0.81	0.86

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