# data[].attributes.body
The extent to which an item differentiates between high-and low-ability test-takers.

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The extent to which an item is easy or difficult for the proposed group of test-takers.

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4. Use item indices to accept, discard, or revise items

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3. Make certain that the intended answer is clearly the only correct one

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2. State both stem and options as simply and directly as possible

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1. Design each item to measure a specific objective

# data[].attributes.headline
There's just 1 correct answer/short answer

# data[].attributes.subject
There's just 1 correct answer/short answer

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The degree of correspondence of the characterisstics of a given language test task to the features os a target language task

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large-sacle standirazed tests of proficency

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large-sacle standirazed tests of proficency

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other concurrent performance beyond the assessment itself

# data[].attributes.subject
other concurrent performance beyond the assessment itself

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"The extent to which inferences made from assessment results are appropiate, meaningful, and useful in terms of the purpose of the assessment".

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conditions in which the test is administered

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conditions in which the test is administered

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two or more scorers yield inconsistent scores of the same test

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the opportunities for learners to listen. think, take risks, set goals, and process feedback from the coach- and then recycle through the skills that they are trying to master.

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person´s ability, knowledge, or performance 

# data[].attributes.subject
person´s ability, knowledge, or performance 

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performance on the part of the test-taker.

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Is a method. It is an instrument, a set of techniques, procedures, or items.