Which One of the Following Is Not a Threat to the Internal

question 20

Multiple Choice

Which one of the following is not a threat to the internal validity of an experiment?

• A) maturation
• B) regression effect
• C) random error
• D) mortality

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Definitions:

Axons

Long, slender projections of a nerve cell, or neuron, that conduct electrical impulses away from the neuron's cell body.

Impulses

Electrical or chemical signals transmitted through neurons, responsible for conveying information and instructions within the nervous system.

Passive Ion Channels

Membrane proteins that allow ions to pass through the cell membrane without the need for energy input, based on concentration gradients.

Passage

The process or act of moving through, under, over, or past something on the way from one place to another.