TY - JOUR T1 - Fatigue among working people: validity of a questionnaire measure JF - Occupational and Environmental Medicine JO - Occup Environ Med SP - 353 LP - 357 DO - 10.1136/oem.57.5.353 VL - 57 IS - 5 AU - Anna J H M Beurskens AU - Ute Bültmann AU - IJmert Kant AU - Jan H M M Vercoulen AU - Gijs Bleijenberg AU - Gerard M H Swaen Y1 - 2000/05/01 UR - http://oem.bmj.com/content/57/5/353.abstract N2 - OBJECTIVES To evaluate the validity of the checklist individual strength questionnaire (CIS) in the working population. This 20 item self reported questionnaire has often been used in patients with chronic fatigue. To date, no research has focused on the validity of the CIS in occupational groups. METHODS To evaluate the discriminant validity the CIS was filled out by five groups of employees with expected differences in fatigue. The convergent validity was evaluated by comparing the results of the CIS with the results of three related measures: measured unidimensional fatigue, burnout, and need for recovery. RESULTS The CIS was able to discriminate between fatigued and non-fatigued employees in occupational groups. The expected agreement between the results of the CIS and related measures was confirmed. CONCLUSIONS The CIS seems to be an appropriate instrument for measuring fatigue in the working population. ER -