This report describes the third year of the national Follow Through Classroom Observation study. The aims of the study were: (1) to assess program implementation at one site for each of 12 sponsors; (2) to search out the relationships between child outcomes and teaching-learning processes; and (3) to estimate which programs incorporate processes…

Observer reliability and the confusability of codes, two sources of error in the collection of classroom observational data, are examined. Confusability is defined as the extent to which one code is mistakenly recorded as another code. Observational data were collected in each of 172 first grade and 171 third grade Follow Through and comparison…