Recent literature on the psychometric properties of the FLIM with a special emphasis on its validity as a measurement device of fatigue

Objectivity: Since the light stimuli are pre-set by the computer and the physical parameters are maintained on a constant level throughout testing, a high administration objectivity is achieved. To avoid a reduction of administration objectivity caused by wrong handling, the test cycle is described in detail in the chapters “Instruction phase” and “Test phase”. In the instruction phase, the instruction texts are displayed on the monitor. Computerized analysis guarantees an error-free calculation of test scores and thus a high evaluation objectivity. The detailed interpretation section of the manual ensures a high interpretation objectivity.