Sir, – Referring to Sean Keavney’s correspondence (Letters June 4th) regarding Finland’s unexplained fall “from grace” in the Pisa (Programme for International Student Assessment) rankings, and with due respect to all of us who use statistics in educational research, maybe Pisa is just a leaning tower after all? – Yours, etc,
DESMOND SWAN,
(Emeritus Professor of Education,
University College Dublin),
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Stillorgan,
Co Dublin.
