Fullstørrelsesteil

Fullstørrelsesteil is a term used in statistical analysis, particularly within the context of hypothesis testing, to refer to a specific type of test statistic. The concept of a full-sized test statistic implies that it has been calculated using all available data points from a sample or population, as opposed to a subsample or a restricted set of observations. This contrasts with situations where, for example, a preliminary analysis might be conducted on a portion of the data.

The term "fullstørrelsesteil" is most commonly encountered in Scandinavian statistical literature. When a researcher refers to a full-sized test statistic, they are emphasizing that the entire dataset has been incorporated into the calculation of the statistic. This is generally the standard practice in hypothesis testing, as using all available information is believed to yield the most powerful and reliable results.

The properties and distribution of a full-sized test statistic are typically well-defined and understood under the null hypothesis. For instance, a t-test statistic calculated from the entire sample will follow a t-distribution with a specific number of degrees of freedom. If a test statistic were calculated on only a subset of the data, its distribution might differ, potentially leading to incorrect conclusions regarding statistical significance. Therefore, understanding whether a reported test statistic is "fullstørrelsesteil" is crucial for proper interpretation.