This study focuses on the effects of diverse forms of employee involvement on the degree of employees' control, included suggestion system, quality circles, quality of working life program and self-managed work team. The primary goals of these participatory programs are to increase productivity, quality, and/or to enhance employees' satisfaction. Although these programs might lead to such benefits, diverse forms of employee involvement have different effects on attitudes and organizational performance. This study posits that diverse forms of employee involvement may delegate different degrees of decision-making power to non-employees. Our results showed that higher levels of employee involvement were associated with higher degree of influence enjoyed by non-managerial employees. However, most employee involvement programs give restricted control to non-managerial employees in personnel and production areas, but not in strategic issues.