In a _____, Variables Are Manipulated and Measured in Controlled

question 2

Multiple Choice

In a _____, variables are manipulated and measured in controlled situations.

• A)case study
• B)meta-analysis
• C)sample survey
• D)field study
• E)laboratory study

---

Definitions:

Dopamine

A neurotransmitter in the brain associated with pleasure, movement, and motivation.

Neurons

The basic working units of the brain and nervous system responsible for receiving sensory input, processing information, and transmitting signals.

Myelin Sheaths

Insulating layers that form around nerves, including those in the brain and spinal cord, which enable faster transmission of electrical impulses.

Sympathetic Nervous System

A part of the autonomic nervous system that activates the body's fight-or-flight response during perceived threats.