Saundra Says That Whenever She Drinks Coffee in the Evenings

question 20

Multiple Choice

Saundra says that whenever she drinks coffee in the evenings it interferes with her ability to fall asleep.The more coffee she drinks before sleeping,the less sleep she gets.In the context of correlational research,Saundra is describing a _____ between caffeine intake and sleep.

• A)negative correlation
• B)positive correlation
• C)causal relationship
• D)lack of relationship

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Definitions:

DCM Voltage

Direct Current Motor Voltage; refers to the electrical potential required to power a direct current motor.

Electronic Circuitry

The interconnected arrangement of electronic components, such as resistors, capacitors, and transistors, that perform a specific function.

Control Voltage

The electrical potential used to power and operate the control circuits of larger electrical systems, typically lower than power circuit voltages.

Digital Input

An input signal to a digital circuit that represents binary levels (0 or 1), used to control or provide data.