I.Biographical Characteristics　　　　1.Age Age-Turnover:The older you get,the less likely you are to quit your job. Absenteeism:Inversely related?　　　　　　　 higher rates of unavoidable absence Productivity declines with age?　Unrelated Satisfaction:Most--positive association;U-Shaped.Professionals:continually increase; Nonprofessionals:falls during middle age ,--rise I.　2.Gender There is no significant difference in job Productivity between males and females. No evidence indicates gender affects Job satisfaction Absenteeism,women have higher rates of--.　Family ,Time bound? Turnover,mixed evidence.Some found females to have higher---;no difference I.　3.Marital Status No enough studies on---　　 Productivity　 Married employees have fewer Absences, less Turnover,more　Job satisfaction ?Question of causation,　　　　　　　　　　　　?Other statuses besides single or married,divorced or widow. I.　4.Number of dependents No enough studies on---　　 Productivity Positively correlated with Absence,esp. F.; Job satisfaction Turnover:mixed result.Some indicate that children increase turnover;other　lower. .....