Factorial validity of the Occupational Stress Indicator

Year: 1994

Author: Lim, Tock Keng

Type of paper: Abstract refereed

This study investigated the use of the Occupational Stress Indicator (OSI) on school administrators (principals, vice-principals and heads of department) in Singapore, focusing on the reliability and factorial structure of the OSI. The OSI takes a combined person-situation approach to the conceptualisation and measurement of occupational stress. Generally, the school administrators had fairly high scores on Sources of Pressure at work and consequently higher levels of Mental and Physical Ill Health.

In the examination of the factors of the six scales, psychometrically, the factors of three of the scales, Sources of Pressure, Job Satisfaction, and Mental and Physical Health, were found to be quite reliable. Some of the factors of the three other scales, Type A, Locus of Control and Coping Skills, were found to be less reliable. The items of these three scales had to be re-factor analysed and the new factors for the scale were found to have higher reliability.

For comparative purposes within the sample, the factors of the OSI scales were analysed by gender and marital status. The males found more job satisfaction, in design and structure, in organisational processes and in personal relationships. The females used social support as a coping skill more than the males. Surprisingly, there were no significant differences in job stress between the single and married administrators, except for home/work interface, where the married administrators, understandably, perceived it as a higher source of pressure.