Stage 4 Sleep Begins When

question 135

Multiple Choice

Stage 4 sleep begins when

• A) dreams begin.
• B) more than 50 percent of brain activity is delta waves.
• C) delta waves begin to appear.
• D) one first falls asleep.

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Definitions:

Observations

The act of noticing and recording something, typically as part of a research study or assessment.

Focus Groups

A research method that gathers a small, diverse group of people to discuss and provide feedback on a particular subject or product.

Netnography Research

An online research method derived from ethnography that studies the social interactions and behaviors of individuals on the internet.

Unobtrusive Approach

A method that minimizes disturbance, allowing for observation or interaction without significantly altering the behavior of the subject.