The Higher the Item Difficulty Index (I

question 15

Multiple Choice

The higher the item difficulty index (i.e., 0.00 to 1.00) , the ________ the item.

• A)easier
• B)harder
• C)more reliable
• D)less reliable

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Definitions:

Serotonin Transporter Gene

The serotonin transporter gene is a gene that controls the expression of the serotonin transporter, which is involved in regulating mood, anxiety, and happiness.

Maternal Depression

A mood disorder affecting mothers, characterized by sadness, low energy, and difficulty in bonding with their child.

Replication

The action of copying or reproducing something.

Study

The act of dedicating time and attention to acquiring knowledge or understanding through reading, practicing, or observation.