S ummary . This is an exploratory attempt to evaluate Nuffield Science courses, adapted for use in third forms in New Zealand schools. Course objectives were identified and growth in these objectives was determined between February, 1967, and February, 1968. In addition, shifts in pupil interest in science and changes in the teachers' behaviour were measured. Where data were unambiguously collected and analysed it would appear that genuine growth in the objectives of the courses did indeed occur.
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Flynn et al. (1970) studied this question.
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