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Summary of issues discussed in seminar at the Annual Conference of the Australian Science Education Research Association, Brisbane, May 1972. Copies of a fuller version of this paper are available from the author.
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McGaw, B. Analysis of covariance for comparisons of change. Research in Science Education 3, 169–174 (1973). https://doi.org/10.1007/BF02558568
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DOI: https://doi.org/10.1007/BF02558568