Information quality is a key factor in the information systems success research. Although the impact of information quality on information system success is frequently examined, the factors which influence information quality are seldom studied. To fulfill this research gap, we try to investigate three types of factors, including personal, organizational and contextual factors, to study their influences on information quality. The personal factors include a person’s gender and age; the organizational factors include the size, the number of IT staffs, and the industry of the organization which the person belongs to; the contextual factors, which mean the “context” of the person in the organization, include the person’s department, position and work experiences. Furthermore, to thoroughly understand the influence of the proposed factors on information quality, we define information quality as the discrepancy between the expectation and perception, and study the influences on expectation and perception separately. We conduct a survey, and collect 145 valid responses to verify our model. A multi-way ANOVA is used in examining the relationships between the proposed factors and the expectation and perception of information quality. The findings of this study may contribute to the information quality literature, and provide managerial insights for practitioners.