item set
item cost
The first was a 12-item test designed to assess risk for general violence over periods of seven to ten years.
ECONOMIST: Crime prediction
The second was a ten-item test designed to assess risk for violence and sexual violence over periods of five to 15 years.
The second issue is reliability, the consistency with which a test measures an item.
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The test of a product or item is how well it fairs under stress.
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