An Important Parameter in Item Response Theory Is the Slope

question 7

Multiple Choice

An important parameter in item response theory is the slope of the curve, which is an indicator of how well the item discriminates.If there is a ________ slope then the item is probably a good discriminator ,whereas a ________ slope probably indicates the item does not discriminate very well.

• A)flat; steep
• B)symmetrical; asymmetrical
• C)steep; flat
• D)asymmetrical; symmetrical Discussion Questions

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Definitions:

Total Output

The total quantity of goods or services produced by a firm or economy.

Perfect Competition

A market structure characterized by a large number of small firms, a homogenous product, perfect information, and easy entry and exit, leading to firms being price takers.

Marginal Decision Rule

A principle stating that an action should be taken if, and only if, the marginal benefit of the action exceeds its marginal cost.

Marginal Revenue

The extra revenue gained from the sale of an additional unit of a product or service.