a description of the biographical characteristics of process

Biographical Characteristics of Process TechniciansEganVoluntary TurnoverFigure 1 and Table 1 below display the site data for voluntary turnover since 1994. In Figure1, the columns represent the percentage turnover for the calendar years since 1994 when thelevel was in excess of 20 percent. It stabilised considerably in 1996, following theintroduction of staff systems and has remained in the 10–14 percent range. The remainder ofFigure 1 is the current 1999 year with the monthly-annualised result shown numerically andthe line indicating the monthly variation in the 12-monthly rolling average. Table 1 displaysthe data from which the graph is generated. The middle of 1999 has seen a pronouncedupturn across site drawn from data on all roles and levels in the organisation.Figure 1Voluntary turnover at BSL site 1994 to present (%)Source: Boyne Smelters Ltd.Table 1: Voluntary turnover at BSL site 1994 to present (%)Site 94 95 96 97 98 Oct Nov Dec Jan Feb Mar April May June July Aug SeptActual 23 21 10 12 9.7 13 14 7 9 6 7 7 7 17 12 14 14Rolling Ave 11.2 12.1 10.8 10.7 9.7 9.3 8.9 8.7 9.6 9.9 10.2 10.6Source: Boyne Smelters Ltd.Population of InterestFrom the group of 492 process technicians who received a WPA score during 1998, thepopulation of interest was determined by selecting employees who had received a WPA scoreof 65 or greater and who had been with the organisation longer than the mean period for theentire group. This reflects the company’s interest in the particular characteristics of highperforming,longer-term employees.Figure 2, below, is a histogram of the tenure of this group of 492. Apart from the neweremployees indicated, over 20 percent of the employees have been with the organisation lessthan five years.127