Depicting variability and uncertainty using intervals and error bars.

Autor: Altman N; Department of Statistics, The Pennsylvania State University, State College, USA., Krzywinski M; Canada's Michael Smith Genome Sciences Centre, Canada.
Jazyk: angličtina
Zdroj: Laboratory animals [Lab Anim] 2024 Oct; Vol. 58 (5), pp. 453-457. Date of Electronic Publication: 2024 Sep 05.
DOI: 10.1177/00236772241247105
Abstrakt: Variability is inherent in most biological systems due to differences among members of the population. Two types of variation are commonly observed in studies: differences among samples and the "error" in estimating a population parameter (e.g. mean) from a sample. While these concepts are fundamentally very different, the associated variation is often expressed using similar notation-an interval that represents a range of values with a lower and upper bound. In this article we discuss how common intervals are used (and misused).
Competing Interests: Declaration of conflicting interestsThe authors have no conflicts of interest to declare.
Databáze: MEDLINE