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standard error
This term is a technical statistical measure used to quantify the precision of an estimate. It is frequently confused with standard deviation; however, while standard deviation describes the spread of individual data points within a single sample, standard error describes the variability of a sample statistic across multiple hypothetical samples.
In academic and scientific writing, it is typically used in the context of confidence intervals and hypothesis testing. It is almost exclusively used as a countable noun in research papers, often appearing in the plural when referring to the errors associated with multiple different parameters.