A Drug That Increases the Activity of the Neurotransmitter Gamma-Aminobutyric

question 20

Multiple Choice

A drug that increases the activity of the neurotransmitter gamma-aminobutyric acid (GABA) is likely to

• A)reduce feelings of anxiety.
• B)reduce psychotic episodes.
• C)reduce feelings of sadness and improve mood.
• D)stabilize severe fluctuations in mood.

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Definitions:

Equal Variances

Assuming that two or more populations have the same variance, often an assumption in statistical tests comparing populations.

Sample Variances

Sample variances refer to the measurement of the variance within a sample from a population, providing an estimate of the population variance.

Population Variance

A measure that indicates the spread of a population's data points or how much the population's data values differ from the mean of the population.

Significance Level

The probability of rejecting the null hypothesis when it is true, often denoted by alpha, and used as a threshold to interpret the p-value in hypothesis testing.