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Table 2 Descriptive statistics and reliability parameters of HLQ-Items

From: The Herdecke questionnaire on quality of life (HLQ): Validation of factorial structure and development of a short form within a naturopathy treated in-patient collective

ItemNo. Item Mean SD Item-Diff. Index loading Cronbach's α r Item-total old Scale
       Total Scale-wise    
       long short   long short  
  Initiative Power & Interest        0.885    
10* good ideas 2.26 0.94 0.57 0.747 0.933 0.852 0.875 0.54 0.49 3
07* reacted spontaneously 2.13 1.08 0.53 0.640 0.934 0.855 0.880 0.47 0.42 3
11* concerned 2.72 1.02 0.68 0.630 0.932 0.846 0.871 0.67 0.61 3
08* decisive 2.44 0.91 0.61 0.617 0.934 0.852 0.876 0.54 0.48 4
12 put plans into action 2.09 0.91 0.52 0.572 0.933   0.877 0.58   4
25 difficult to take the initiative 2.33 1.12 0.58 0.535 0.932   0.873 0.65   4
36 enhanced personally 2.02 1.11 0.51 0.531 0.934   0.881 0.47   4
34 adapt to other people and situations 2.79 0.81 0.70 0.530 0.934   0.878 0.50   3
33 asserted in the environment 2.48 0.96 0.62 0.519 0.933   0.876 0.55   4
17 felt secure 2.36 0.95 0.59 0.481 0.932   0.874 0.66   4
21 future was clear 2.21 1.14 0.55 0.455 0.933   0.879 0.56   4
06 sought contact to others 2.27 1.10 0.57 0.453 0.935   0.884 0.41   5
30 felt enterprising/energetic 2.01 1.05 0.50 0.431 0.932   0.876 0.66   3
  Social Interaction        0.812    
16* felt left out 2.79 1.07 0.70 0.697 0.933 0.850 0.775 0.57 0.52 5
27* felt over-directed 2.90 1.10 0.73 0.636 0.933 0.853 0.780 0.57 0.51 4
20* abandoned community life 2.51 1.12 0.63 0.631 0.932 0.847 0.766 0.66 0.59 5
18 family life was a burden 2.92 1.18 0.73 0.546 0.934   0.792 0.52   5
32 didn't feel comfortable in the company of others 2.31 1.10 0.58 0.532 0.934   0.808 0.46   5
28 convey feelings to other 2.63 0.92 0.66 0.496 0.933   0.788 0.57   5
05 anxious/fearful 2.42 1.20 0.61 0.461 0.933   0.797 0.56   3
  Mental Balance        0.812    
35* nervous / irascibly 1.99 1.06 0.50 0.640 0.934 0.858 0.803 0.47 0.40 3
26* well-balanced 2.01 0.97 0.50 0.600 0.932 0.850 0.770 0.67 0.61 3
19* exhausted 1.24 0.94 0.31 0.567 0.933 0.849 0.782 0.59 0.56 2
09 could recover myself 1.57 0.99 0.39 0.557 0.933   0.784 0.55   2
31 tired 1.38 0.92 0.35 0.554 0.933   0.784 0.57   2
39 I happy 2.10 0.90 0.53 0.499 0.932   0.781 0.69   3
04 sleep was refreshing 1.55 1.05 0.39 0.356 0.935   0.809 0.42   2
  Motility        0.781    
22* physically agile 1.95 1.02 0.49 0.789 0.935 0.854 0.708 0.40 0.43 1
24* movement was light 1.84 1.07 0.46 0.786 0.934 0.851 0.673 0.47 0.46 1
38* arms and legs felt heavy 1.36 1.07 0.34 0.668 0.935 0.855 0.571 0.39 0.42 1
37 powerful 1.47 0.95 0.37 0.509 0.933   0.482 0.56   2
  Physical Complaints        0.692    
02* suffered from physical pain 1.04 0.97 0.26 0.726 0.936 0.859 * 0.27 0.32 1
01* felt ill 1.09 0.91 0.27 0.705 0.935 0.853 * 0.42 0.44 2
  Digestive Well-Being        0.621    
03* good appetite 2.71 1.12 0.68 0.763 0.935 0.857 * 0.37 0.38 2
23* mealtimes were a burden 2.87 1.10 0.72 0.734 0.934 0.853 * 0.45 0.46 2
  1. number of answered items ranged from 2,227 [min.] and 2,430 [max.]
  2. * Short form Item