Why Should You Perform Bivariate and Multivariate Analyses of the Items

question 12

Multiple Choice

Why should you perform bivariate and multivariate analyses of the items in your index?

• A)to make them longer
• B)to help you develop new items
• C)to see how they correspond to each other to decide which ones should be included
• D)to see how they differ from each other to make sure you include different items
• E)your results would be invalid otherwise

---

Definitions:

Parasympathetic Nervous System

Part of the autonomic nervous system responsible for rest and digestion, counterbalancing the sympathetic nervous system.

Sympathetic Nervous System

A part of the autonomic nervous system responsible for the body's 'fight or flight' response during stressful or threatening situations.

Adrenal Glands

Endocrine glands located above the kidneys that produce a variety of hormones including adrenaline and cortisol.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, released during stress and excitement, increasing heart rate, muscle strength, blood pressure, and sugar metabolism.