Which Statement Is TRUE Regarding an Item-Discrimination Index

question 138

Multiple Choice

Which statement is TRUE regarding an item-discrimination index?

• A) It has been used by e-Harmony.com and other dating sites for matchmaking.
• B) There is more than one formula for calculating an item-discrimination index.
• C) Tetrachoric correlation is most frequently used in any formula for an item-discrimination index.
• D) All of these.

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Definitions:

Beatrix Gardner

A psychologist known for her work with sign language in non-human primates, particularly with a chimpanzee named Washoe.

David Premack

A psychologist known for the Premack Principle, which suggests that more probable behaviors can reinforce less probable behaviors.

Herbert Terrace

A psychologist known for his work in animal cognition, especially in language learning in chimpanzees.

Native-born Americans

Individuals born in the United States, as opposed to those who have immigrated and obtained citizenship.