The Number of Dummy Variables Representing a Qualitative Variable Should

question 64

True/False

The number of dummy variables representing a qualitative variable should be one less than the number of categories of the variable.

---

Definitions:

Electroconvulsive Therapy

A medical treatment that involves inducing seizures in patients through electrical stimulation to provide relief from severe mental illnesses.

Vagal Nerve Stimulation

An emerging biomedical treatment for depression that involves electrically stimulating the vagus nerve with a small battery-powered implant.

Randomized Control Trials

A study design in research where participants are randomly assigned to either the group receiving the treatment under investigation or to a group receiving a standard treatment or placebo.

Efficacy

The ability to produce a desired or intended result, often used in the context of a treatment's effectiveness.