Embodiments of the present invention are directed to securely administering computerized tests over a network, such as, for example, the Internet. A method and system are provided for the delivery of computerized tests via the Internet with unique security features which reduce or eliminate the need for constant human observation of examinees and dedicated testing centers. The system makes test creation, publication, registration and delivery tools accessible to users via the Internet. Security features include real-time analysis of examinee test-response data and test event data for indications test-taker misconduct, authentication of examinee identity using biometric information, observation of examinee activity using real-time Internet-based audio and video data, and continuous or alert-based human proctoring and intervention via the Internet.