This study investigated the extent to which students? participation in and satisfaction with a computer-mediated collaborative learning system were affected by their preference for autonomy and anxiety about the use of computers. The results indicated that although students varied significantly in terms of their preference for autonomy and anxiety about the use of computers, there was no significant difference in participation and satisfaction levels between low and high computer anxiety students or between those with a low preference for autonomy relative to those with a high preference for autonomy.