When an Item-Characteristic Curve of an Ability Test Has an Inverted

question 100

Multiple Choice

When an item-characteristic curve of an ability test has an inverted U shape,it usually indicates that

• A) testtakers of moderate ability have the highest probability of answering the item correctly.
• B) testtakers of low ability have the highest probability of answering the item correctly.
• C) testtakers of high ability have the highest probability of answering the item correctly.
• D) the item is working as well as any item on this test could be expected to work.

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Definitions:

Isolated

To be set apart or separated from others, often referring to geographical, social, or molecular contexts.

Homologous Structures

Anatomical features in different organisms that, despite potential differences in function, indicate common ancestry.

Common Ancestry

The concept that different species share a common ancestor, a fundamental principle in evolutionary biology.

Different Ancestors

Refers to organisms that do not share a recent common ancestor, leading to diversity in evolutionary lineages.