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standard deviation

Matemática
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substantivo

Contexto: "The respondents’ demographics, COVID-19-related knowledge, knowledge, information sources, risk perception, expected end of lockdown and precautionary health behavior were analyzed using frequencies, percentages, means, and standard deviations."
Fonte: Peter O. Olapegba, Steven K. Iorfa, Samson O. Kolawole, Rotimi Oguntayo, Joshua C. Gandi, Iboro F.A. Ottu, Olusola Ayandele, Survey data of COVID-19-related Knowledge, Risk Perceptions and Precautionary Behavior among Nigerians, Data in Brief, Volume 30, 2020, 105685, ISSN 2352-3409, https://doi.org/10.1016/j.dib.2020.105685. (https://www.sciencedirect.com/science/article/pii/S2352340920305795) Abstract: In response to the global call for strategic information to understand the novel coronavirus, the dataset presented in this paper is an examination of COVID-19-related knowledge, risk perceptions and precautionary health behavior among Nigerians. The data were generated during the COVID-19 lockdown in the country through a survey distributed via an online questionnaire, assessing socio-demographic information (7 items), knowledge (5 items), information sources (1 item), risk perception (9 items), expected end of lockdown (1 item), and COVID-19 precautionary health behavior (10 items), from 28th March to 4th April, 2020, gathering a total of 1,357 responses. A combination of purposive and snowball techniques helped to select the respondents via Whatsapp and Facebook from 180 cities/towns in the 6 geopolitical zones of Nigeria. The survey data were analyzed using descriptive statistics. The entire dataset is stored in a Microsoft Excel Worksheet (xls) and the questionnaire is attached as a supplementary file. The data will assist in curbing the Coronavirus pandemic by offering evidence for strategic and targeted interventions as well as health policy formulations and implementation. Keywords: Survey data; COVID-19; Knowledge; Risk Perceptions; Precautionary Behavior; Nigeria

Termo equivalente: desvio padrão

Definição: "In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values."
Fonte: Bland, J.M.; Altman, D.G. (1996). "Statistics notes: measurement error". BMJ. 312 (7047): 1654. doi:10.1136/bmj.312.7047.1654. PMC 2351401. PMID 8664723.

Definição em português: "Em estatística, o desvio padrão é uma medida da quantidade de variação ou dispersão de um conjunto de valores."