Student attitudes toward the Internet were investigated in a study designed to develop an instrument that would provide a quantitative measure of the attitudes undergraduates have toward educational uses of the Internet while studying some behavioral correlates of student attitudes. The responses of 395 undergraduates to some form of the scale were used to construct the measure. Statements soliciting attitudes toward educational use of the Internet were written in two formats: the Thurstone equal appearing interval scale and the Likert summated rating scale. These pilot scales were administered with a social desirability response scale to ensure that students did not respond to scale items in a socially desirable manner. The final form, administered to 188 students, was an 18-item Likert-format "Attitude toward Educational Uses of the Internet" (ATEUI) scale that yielded a high internal consistency. Several behavioral correlates lent some credence to the scale's construct validity. Favorable attitudes were associated with: (1) keeping track of valuable educational Internet sites; (2) sharing information found on the Internet with friends; (3) choosing classes that use the Internet; (4) greater frequency of Internet use, both in general and for educational purposes; (5) greater number of reasons for using the Internet in education; and (6) greater number of Internet features used. Also, there were no differences between men and women or in class standing in ATEUI responses. Future research that considers using the ATEUI should continue to obtain new behavioral correlates of the domain. (Contains 2 tables and 14 references.) (Author/SLD)