In a Correlation Study, the P Value of a Pearson

question 5

Multiple Choice

In a correlation study, the p value of a Pearson r statistic is 0.005. What does this mean?

• A) There is a small association between the two variables.
• B) There is a very small chance that the relationship between the two variables is zero.
• C) The variable that is first in time determined .5% of the variation in the other variable.
• D) Only 5% of the variables are the result of shared influences.

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Definitions:

Action Potentials

short-lasting events in which the electrical membrane potential of a cell rapidly rises and falls, allowing neurons to transmit signals.

Synaptic Gaps

The small spaces between neurons across which neurotransmitters travel to transmit signals from one neuron to another.

Neurotransmitters

Chemicals released by one neuron (usually the presynaptic neuron), which trigger a response in another neuron (usually the postsynaptic neuron); the chief means of communication among neurons.

Presynaptic Neuron

A neuron that sends a signal toward a synaptic cleft, releasing neurotransmitters to stimulate or inhibit the postsynaptic cell.