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Is fiú aird a thabhairt ar thuairim Anthony Green (2007: 5) a rianaíonn an ceangal idir bailíocht an scrúdaithe féin agus cúrsaí foghlama, cúrsaí teagaisc agus cúrsaí measúnaithe: ‘A test is not valid to the extent that it engenders positive washback, but it is likely to engender positive washback to the extent that it is valid’.