<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0138-6557</journal-id>
<journal-title><![CDATA[Revista Cubana de Medicina Militar]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. cuban. med. mil.]]></abbrev-journal-title>
<issn>0138-6557</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0138-65572023000100015</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de componentes principales en la validación de instrumentos de calidad de vida relacionada con la salud bucal]]></article-title>
<article-title xml:lang="en"><![CDATA[Principal components analysis in the validation of quality-of-life instruments related to oral health]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romo-Pérez]]></surname>
<given-names><![CDATA[Camilo Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wilches-Visbal]]></surname>
<given-names><![CDATA[Jorge Homero]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Magdalena  ]]></institution>
<addr-line><![CDATA[ Santa Marta]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>52</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0138-65572023000100015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0138-65572023000100015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0138-65572023000100015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El análisis factorial exploratorio se usa comúnmente para evaluar la validez de la estructura interna en escalas de calidad de vida de la salud bucal. Empero, existen discusiones sobre usar indiscriminadamente el análisis de componentes principales para extraer los factores.  Objetivo:  Comparar los resultados de la validez basada en la estructura interna del Parental-Caregiver Perception Questionnaire - 8 ítems mediante análisis factorial exploratorio utilizando el análisis de componentes principales y otros métodos de extracción de factores.  Métodos:  Se realizó una revisión preliminar de la literatura para examinar el uso del análisis factorial exploratorio y sus métodos en la validación de escalas de calidad de vida relacionada con la salud bucal y se ejecutó un análisis factorial con datos de la validación del instrumento Parental-Caregiver Perception Questionnaire - versión 8, para comparar los valores de las comunalidades y las cargas factoriales de las soluciones extraídas.  Resultados:  La mayoría de los artículos que exploran la estructura factorial reportan el análisis de componentes principales como método de extracción y Varimax en la rotación. La información sobre los criterios para utilizar estos métodos fue insuficiente. En el análisis factorial se obtuvo que, las cargas factoriales, las comunidades y el número de factores extraídos fueron superiores con el método componentes principales.  Conclusión:  Usar el análisis de componentes principales como método de extracción de factores acarrea el riesgo de obtener una dimensionalidad sobreestimada en la evaluación de la validez basada en la estructura interna de las escalas de calidad de vida relacionada con la salud bucal.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Exploratory factor analysis is commonly used to assess the validity of the internal structure in oral health quality of life scales. However, there are discussions about using principal component analysis indiscriminately to extract the factors.  Objective:  To compare the results of the internal structure-based validity of the Parental-Caregiver Perception Questionnaire - 8 items by exploratory factor analysis using principal component analysis and other factor estimation extraction methods.  Methods:  A literature review was conducted to examine the use of exploratory factor analysis and its methods in validating oral health-related quality of life scales, and a factor analysis was performed with validation data from the Parental-Caregiver Perception instrument. Questionnaire - version 8 to compare the values &#8203;&#8203;of the communalities and the factor loads of the solutions extracted.  Results:  Most of the articles that explored the factorial structure reported the analysis of principal components as extraction method and Varimax in rotation. Information on the criteria for using these methods was insufficient. In the factorial analysis, it was obtained that the factorial loads, the communities and the number of extracted factors were higher with the principals component method.  Conclusion:  Using principal components analysis as a factor extraction method carries the risk of obtaining an overestimated dimensionality in the validity assessment based on the internal structure of oral health-related quality of life scales.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[calidad de vida]]></kwd>
<kwd lng="es"><![CDATA[salud bucal]]></kwd>
<kwd lng="es"><![CDATA[análisis factorial]]></kwd>
<kwd lng="es"><![CDATA[componentes principales]]></kwd>
<kwd lng="es"><![CDATA[errores]]></kwd>
<kwd lng="en"><![CDATA[quality of life]]></kwd>
<kwd lng="en"><![CDATA[oral health]]></kwd>
<kwd lng="en"><![CDATA[factor analysis]]></kwd>
<kwd lng="en"><![CDATA[principals component analysis]]></kwd>
<kwd lng="en"><![CDATA[errors]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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