Image: SciChem International (CASE equipment). Testing variables in the resonant frequency of pipes.
It’s very welcome news that Amanda Spielman is going to support an Ofsted ‘research push’ as reported here in Schools Week. The publication of results of an initial trial is a step in the right direction. In my ‘Gimme some truth‘ blog at the end of 2014, I complained about the lack of any validity trials so it’s great to read that Amanda Spielman is saying “we should be looking at the validity of inspection: is inspection succeeding in measuring what it is intended to measure?” – quoted in the Schools Week article. Validity and reliability are clearly different but inter-related; both need to be explored.
At the Headteachers’ Roundtable event in February, the findings from the now-published trial were discussed on a panel including Dr Becky Allen from Education DataLab and…
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