Table 1.

Descriptive statistics. Calibration sample (n = 505).

Items	n	M	SD	Skewness		Kurtosis
				Statistic	Std. Error	Statistic	Std. Error
BIP-Q5 1	505	7.66	2.11	−1.27	0.11	1.75	0.22
BIP-Q5 2	505	6.95	1.68	−0.65	0.11	0.61	0.22
BIP-Q5 3	505	2.02	1.86	2.1	0.11	3.8	0.22
BIP-Q5 4	505	7.75	2.17	−1.02	0.11	0.48	0.22
BIP-Q5 5	505	6.61	2.39	−0.51	0.11	−0.52	0.22

Note: BIP-Q5 = Brief Illness Perception Questionnaire; SD: standard deviation.