Table 2

Number of cases and Cronbach’s alpha of the “need for recovery scale” by education level, gender, and age class

	Primary education		Lower secondary education		Higher secondary education		Higher vocational education		University degree
Age class	F	M	F	M	F	M	F	M	F	M
F, female; M, male.
* Small number of respondents, joined with the age class 25–34 of the same gender and education level.
†Small number of respondents, joined with the age class 45–54 of the same gender and education level.
Section A: Number of cases
<25 y	*	*	248	311	800	388	280	155	*	*
25–34 y	154	269	1313	1397	3097	2299	1818	1801	881	798
35–44 y	263	533	1841	2409	2039	2894	1349	2440	630	1067
45–54 y	354	762	1418	2266	1054	2108	800	1923	370	863
>54 y	118	325	318	539	187	444	138	465	(2)	183
Section B: Cronbach’s alpha
<25 y	*	*	0.86	0.86	0.83	0.84	0.85	0.81	*	*
25–34 y	0.89	0.86	0.87	0.89	0.86	0.87	0.85	0.85	0.85	0.85
35–44 y	0.90	0.90	0.88	0.88	0.87	0.88	0.87	0.87	0.84	0.86
45–54 y	0.90	0.91	0.89	0.90	0.89	0.89	0.87	0.87	0.88	0.87
>54 y	0.85	0.92	0.88	0.89	0.92	0.90	0.88	0.88	†	0.89