Suppose You Randomly Assign One Group of Children to Watch

question 8

Multiple Choice

Suppose you randomly assign one group of children to watch the Discovery Channel and another comparable group of children to watch network television. Two months later, you assess their intellectual performance. The type of TV programming that children watch is your

• A) independent variable
• B) dependent variable
• C) confounding variable
• D) criterion variable

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Definitions:

Metering Valve

A type of combination brake system valve that introduces a slight delay in the application of the front disc brakes in relation to the rear drum brakes. This allows more balanced braking and better vehicle control. See alsoproportioning valves.

Junction

A point where two or more roads or electrical circuits meet or cross.

Pressure Differential Valve

A valve used in hydraulic systems to maintain a constant pressure difference between two points, often used in braking systems.

Hygroscopic

A characteristic of a substance to attract and hold water molecules from the surrounding environment.