Streaming Longitudinal Study; Pupils, 1965

The data are held under nine separate study numbers; one for each of the eight surveys and one for the merged file. The study covers a four-year period.

In the first year, 1964 (Surveys SN:008 and SN:009), a cross-sectional study of 84 schools, 42 matched pairs of streamed and non-streamed schools, was made. In the succeeding three years, this number was reduced as schools dropped out due to changes in organisation or to reductions in numbers of pupils or staff. In the end, only schools that had completed the full research programme were considered in the longitudinal study, that is, data from 72 schools or 36 matched pairs.