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Table 2 The scales of the List of Functional Abilities under two successive disability pension legislations: reliability (Cronbach's Alpha) and 95% confidence interval.

From: The dimensional structure of the functional abilities in cases of long-term sickness absence

Scale (number of items) Disability pension legislation WIA/time period 2005-2007 (N = 50,931) Disability pension legislation WAO/time period 2003-2005 (N = 80,968)
Work stress (9) 0.856 (0.854-0.858) 0.827 (0.826-0.829)
No independence in performance (7) 0.727 (0.723-0.731) 0.724 (0.721-0.727)
Communication (6) 0.537 (0.530-0.543) 0.491 (0.485-0.496)
Taking initiative (3) 0.749 (0.745-0.753) 0.718 (0.715-0.721)
Social task demands (6) 0.800 (0.797-0.802) 0.766 (0.763-0.768)
Cognitive functioning (7) 0.791 (0.788-0.793) 0.757 (0.754-0.760
Acting efficiently (3) 0.592 (0.586-0.598) 0.635 (0.631-0.640)
Use of the legs (8) 0.924 (0.923-0.925) 0.914 (0.913-0.915)
Grip of the hand (5) 0.937 (0.936-0.937) 0.903 (0.902-0.904)
Use of the arms (7) 0.865 (0.864-0.867) 0.843 (0.842-0.845)
Posture of the trunk/back (3) 0.720 (0.716-0.725) 0.730 (0.727-0.733)
Use of the hand and fingers (7) 0.762 (0.759-0.766) 0.683 (0.680-0.687)
Use of the neck (2) 0.691 (0.686-0.697) 0.675 (0.670-0.679)
Movement of the trunk/back (4) 0.612 (0.606-0.617) 0.583 (0.578-0.588)
Working hours (2) 0.973 (0.972-0.973) 0.968 (0.968-0.969)