A study was conducted to document the educational status, history, and standardized test performance of London, Ontario, students in the first-grade class of 1978-79 who did not reach the fourth grade by the fall of 1981. Additionally assessed was the predictive validity of Early Identification Ratings (EID) made in 1978-79. The following variables were available for investigation: sex, year, and month of birth; early identification ratings for language and mathematics (combined for 1978-79) and separate ratings for reading and mathematics for the school years 1979-80, 1980-81, and 1981-82; an indicator of each student's educational status in the fall of 1981 and 1982; OTIS IQ and standard scores, and CTBS standard scores for reading comprehension, mathematics computation, mathematics problem solving, and an average of these latter three scores. Among the results, about one-fifth of these academically unsuccessful students were highly rated in first grade; such students were two or three times as likely to receive low EID ratings after first grade than were all students. Students in the first-grade class of 1978-79 who did not reach fourth grade in the fall of 1981 were more likely to be boys and to have been born in the last half of the year. (RH)