Examined with 49 deaf-blind children (under 9 years old) was the use of the Telediagnostic Behavior Evaluation Protocol, a video-tape recorded evaluation protocol. To further develop the Telediagnostic Protocol and delineate the characteristics of the Ss observed during the process of test development, Ss were video-taped in eight 3-minute behavioral observation situations on three occasions at yearly intervals. Three judges recorded the observed behaviors (such as sensory reception, coordination, oral speech, eating, memory, sense of humor, and problem-solving skill). Analysis of results indicated that the test correlated to a statistically significant degree with standardized psychometrics and teacher ratings, that groups of judges did not score significantly differently, that the two halves of the test were significantly correlated, that the population changed over test administrations to a significant degree, and that the population presented different levels of behavior in the test situations to a significant degree. Data supported the validity and reliability of the test procedure. (Approximately half of the document consists of appended material such as the behavior rating form and results in tabulated form.) (IM)