Multi-wave, multi-variable models of job insecurity: applying different scales in studying the stability of job insecurity

The study had two specific targets: first, to examine the stability of job insecurity by utilizing three-year longitudinal data (n = 109) collected in Finland and, second, to clarify psychometric properties of four job insecurity scales, i.e., the global scale, the importance scale, the probability scale and the powerlessness scale. The study was carried out by means of questionnaires, which were answered on three occasions. Analyses were conducted using multiwave, multi-variable models which were estimated and tested via the LISREL program. Generally, the results showed that job insecurity remained relatively stable during the follow-up period, although there were some variations in the stability as well as in the psychometric properties of the four job insecurity scales examined. More specifically, three of the scales studied showed good psychometric properties, whereas the probability scale could not be estimated longitudinally. Furthermore, working organization and time had effects on the level of job insecurity measured via the different scales.