EN
The analysis performed by the author aimed at compiling a list of factors determining professional stability of teachers. It was based on results of researches conducted among the teaching personnel in grammar schools of Łódź in 1970 and 1971. On the basis of aggregation inputs from the point of view of the average age there was compiled a list of potential stabilization factors. This list including: type of school, sex, marital status, and education was next verified by means of such standards of comparison as: 1) average number of years on the job, 2) fluctuation coefficients, 3) stabilization coefficients, 4) logical premises (the subregion was included as well). This operational lowed to approve of the full list of factors even though the oretical analysis was not always confinned in the studies. There should be constructed tables of duration of the professional life and described the shaping of average continued loyalty to the performed job.