Explorations in Statistics: Standard Deviations and Standard Errors

Autor/in	Curran-Everett, Douglas
Titel	Explorations in Statistics: Standard Deviations and Standard Errors
Quelle	In: Advances in Physiology Education, 32 (2008) 3, S.203-208 (6 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1043-4046
DOI	10.1152/advan.90123.2008
Schlagwörter	Physiology; Error of Measurement; Statistics; Experiential Learning; Science Education; Computer Software; Teaching Methods; Observation + Suchen Sie Ihr Suchwort? Physiologie; Messfehler; Statistik; Experiental learning; Erfahrungsorientiertes Lernen; Naturwissenschaftliche Bildung; Teaching method; Lehrmethode; Unterrichtsmethode; Beobachtung
Abstract	Learning about statistics is a lot like learning about science: the learning is more meaningful if you can actively explore. This series in "Advances in Physiology Education" provides an opportunity to do just that: we will investigate basic concepts in statistics using the free software package R. Because this series uses R solely as a vehicle with which to explore basic concepts in statistics, I provide the requisite R commands. In this inaugural paper we explore the essential distinction between standard deviation and standard error: a standard deviation estimates the variability among sample observations whereas a standard error of the mean estimates the variability among theoretical sample means. If we fail to report the standard deviation, then we fail to fully report our data. Because it incorporates information about sample size, the standard error of the mean is a misguided estimate of variability among observations. Instead, the standard error of the mean provides an estimate of the uncertainty of the true value of the population mean. (Contains 7 figures and 8 footnotes.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10