This review examines the definition, measurement, and correlates of computer anxiety as provided in available research. The concept of computer anxiety reflects an anxiety state, rather than an anxiety trait, thus rendering it susceptible to change over time. Computer anxiety is similar in nature to math anxiety and test anxiety. Two approaches to anxiety measurement exist. One focuses upon the direct development of an index of computer anxiety which is then related to other variables; the other involves indirect responses from subjects regarding their fears or attitudes toward computers derived from items on a survey of computer usage. Some generalizations regarding state-of-the-art in computer anxiety measurement are: The main approach has been use of self-report measures; a basic model for several instruments has been developed in connection with the State-Trait Inventory; Likert scale formats are frequently used; and items are developed from some rational definition of computer anxiety. The current research suggests the concepts of computer anxiety are difficult to measure validly, but what is measured can be done reliably. Potential correlates of computer anxiety include gender, state-trait anxiety, and hemisphericity. (DWH)