Applicability of the bayesian methodology to the study of low incidence diseases : example of child anxiety = Aplicabilidad de la metodología bayesiana (método Bayes) en estudios de casos de baja indicencia : ejemplo de la ansiedad infantil

Autor:	Jesús Cantero, Tatiana Lozano, Concepción San Luis, Guillermo A. Cañadas, Luis M. Lozano, Emilia I. de la Fuente
Rok vydání:	2011
Předmět:	Bayesian probability Small sample Large sample Psychiatry and Mental health Clinical Psychology Geography Frequentist inference Statistics Childhood anxiety medicine Anxiety Prevalence studies medicine.symptom Relevant information Demography
Zdroj:	Revista de psicopatología y psicología clínica (16, n. 1), 2011, p. 61-66. ISSN: 1136-5420
ISSN:	2254-6057 1136-5420
Popis:	This work is a cross-sectional quantitative study that provides information about anxiety symptoms from the CECAD questionnaire, applied to 500 students aged 8-12. Anxiety prevalence was estimated using three different procedures, both in the total sample and in a subsample of 10 children, randomly selected. Results showed a prevalence range of childhood anxiety for the three methods of 16.5%-23.5%, 16.7%-23.7%, and 18.3%-24%, when using the large sample. When the small sample size was used, the frequentist estimation method yielded impossible values, but results when using Bayesian methods were between 2.3% and 41.3% in the non-informative distribution, and between 17.9% and 27.4% in the informative distribution. The Bayesian method was found to be the procedure that provided better estimation, with improved results when informative distribution was used since it adds relevant information.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e219db337df015fbcf2f3aabdd80ec https://doi.org/10.5944/rppc.vol.16.num.1.2011.10351 Zobrazit plný text záznamu Plný text ve formátu PDF