Software Problems in Analysing Physiological and Work Study Data

Abstract

In analysing man-work relations in ATC-tasks correlations between stress and strain factors are of importance. In field research the variables of stress and strain factors represent time series, the analyses of which call for some caution, When testing correlations between time series, the effect of serial correlation has to be considered. The calculation of regression coefficients for the description of the relation botween serial correlated variables requires assumptions about the validity of the least square procedure. After taking into consideration further analyses of the residuals and serial correlation effects a combination of stress factors was used to determine the strain factor ‘ heart rate’ of a radar controller. The coefficient of multiple determination reached about 80 percent.