Cambridge Assessment English
Comparing
scores to IELTS
7
Reading, Listening and Use of English components
Reading, Listening and Use of English components contain a series of items which are
marked as either correct
or incorrect. We use Rasch analysis (Rasch 1960, 1980) to ensure a consistent standard is applied in the grading
of
objectively marked components, accounting for differences in difficulty between them. This is achieved
by calibrating the difficulty of all the items in a given test onto the same scale. This
calibration allows us to
determine the raw marks for each specific test paper that represent a predetermined level of ability – the standard
needed to achieve a particular grade or level. Furthermore, the scales used for each
test are linked to adjacent
levels, meaning that these standards can be compared and linked across levels.
By a process of standard setting, these defined ability levels
are linked to CEFR thresholds, meaning that the same
process of mapping can take place as with the Writing and Speaking components.
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