A Researcher Plans to Conduct an Experiment to Test Whether

question 260

Multiple Choice

A researcher plans to conduct an experiment to test whether a cup of hot milk at night helps people fall asleep faster than usual. In this study, the independent variable is:

• A) the amount of time it takes participants to fall asleep.
• B) the consumption of hot milk at bedtime.
• C) the number of participants drinking hot milk at bedtime.
• D) the number of hours each participant sleeps for.

---

Definitions:

Fatal Hereditary Disease

A genetic disorder that is passed down from parents to offspring and leads to death.

Huntington Disorder

A genetic disorder causing the progressive breakdown of nerve cells in the brain, leading to physical and cognitive decline.

Delayed Onset

The commencement of symptoms or effects following an expected timeframe, often used in medical contexts to describe a delayed reaction to treatment or injury.

Middle Adulthood

A stage of life, typically considered to occur from around age 40 to 65, marked by stability, growth in professional and personal life, and often by changes in physical and cognitive abilities.