How Do Researchers Calculate the Discrimination Index

question 16

Multiple Choice

How do researchers calculate the discrimination index?

• A) They calculate the difference between the percentage of upper performers and the percentage of lower performers who responded correctly.
• B) They calculate the percentage of test takers who answered the item correctly.
• C) They compare the percentage of test takers who answered the item correctly by demographic group.
• D) They develop a matrix that contains the results of the item analyses for each item and calculate a score by adding the matrix columns.

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Definitions:

Psychological Dependence

A condition where an individual feels a compelling emotional need to continue using a substance or engaging in an activity, despite potential harm.

Oxycontin

A prescription opioid medication used for managing moderate to severe pain.

Mushrooms

A diverse group of fungi known for their distinctive fruiting bodies, which can be edible, toxic, or have medicinal properties.

Psychological Dependence

A condition in which a person feels emotionally or mentally unable to function without a certain substance or behavior.