It Is Needed to Calculate the Item-Validity Index

question 162

Multiple Choice

It is needed to calculate the item-validity index.It is

• A) the point-biserial correlation between the item score and the criterion score.
• B) the mean of the item-score distribution.
• C) the item-score standard deviation.
• D) All of these

---

Definitions:

Hemophilia

An X-linked chromosomal disorder involving abnormal blood clotting.

Blood Clot

A mass formed by the coagulation of blood in response to injury or a medical condition, which can impede blood flow.

Dominant Inheritance

A genetic principle in which an allele expresses its phenotype even in the presence of a recessive allele.

Allele

One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.