Examlex
Which factor is NOT a defining feature of posttraumatic stress disorder?
Standard Error
The standard deviation of the sample mean's distribution; a measure of how much a sample mean varies from the true population mean.
Pooled Estimator
A statistical method that combines multiple estimates to produce a better overall estimate.
Variance
The square of the standard deviation, representing the average of the squared differences from the mean, and measures the spread of a data set.
Standard Deviation
A statistic that measures the dispersion or variation of a set of values from its mean, indicating how spread out the values are.
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