<?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>0212-9728</journal-id>
<journal-title><![CDATA[Anales de Psicología]]></journal-title>
<abbrev-journal-title><![CDATA[Anal. Psicol.]]></abbrev-journal-title>
<issn>0212-9728</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Murcia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0212-97282024000200008</article-id>
<article-id pub-id-type="doi">10.6018/analesps.570181</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Psychometric properties of the spanish version of the Chalder Fatigue Scale in clinical and general populations]]></article-title>
<article-title xml:lang="es"><![CDATA[Propiedades psicométricas de la versión española de la Escala de Fatiga de Chalder en población clínica y general]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ceballos-Munuera]]></surname>
<given-names><![CDATA[Celia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Senín-Calderón]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Becerra]]></surname>
<given-names><![CDATA[Ángela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Testal]]></surname>
<given-names><![CDATA[Juan F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Seville Personality, Evaluation and Psychological Treatment Department ]]></institution>
<addr-line><![CDATA[Seville ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Cádiz Department of Psychology ]]></institution>
<addr-line><![CDATA[Cádiz ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<volume>40</volume>
<numero>2</numero>
<fpage>242</fpage>
<lpage>253</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0212-97282024000200008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0212-97282024000200008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0212-97282024000200008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective: The Chalder Fatigue Scale (CFS) is a brief self-report screening scale for fatigue that is used in Spain but has not been validated for the Spanish population. The aim of this study was to adapt and evaluate the psychometric properties of the Spanish version of the CFS (Sp-CFS).  Method: The sample consisted of 3,671 participants (3,190 from the general population and 481 patients), aged 18 to 86 years (M = 28.43; DT = 12.71), 67.6% of whom were women. Psychometric properties of the scale were tested in a cross-sectional design using cross-validation (exploratory and confirmatory factor analysis) and estimation of invariance (sex and clinical condition).  Results: A four-factor model (low energy, sleep problems, concentration problems and subjective cognitive dysfunction) rather than an original two-factor model (physical and mental fatigue) provided better indices of goodness of fit to the data. The internal consistency and stability of the scale were excellent. Its convergent validity was supported by its significant association with anxiety, depression, stress, and the positive and negative symptoms of the psychosis spectrum. The instrument did not show significant differences between sexes or clinical conditions, and it discriminated between the general population and the patients, with the latter obtaining significantly greater scores.  Conclusions: Sp-CFS is a reliable and valid scale for measuring a transdiagnostic construct such as fatigue in Spanish general and clinical populations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo: La Escala de Fatiga de Chalder (CFS) es una escala breve para evaluar fatiga que se utiliza en España, pero que no ha sido validada en su población. El objetivo del estudio fue adaptar y evaluar las propiedades psicométricas de la versión española de la CFS (Sp-CFS).  Método: La muestra la conformaron 3,671 participantes (3.190 de la población general y 481 pacientes), con edades entre 18 y 86 años (M = 28.43; DT = 12.71), siendo el 67.6% mujeres. Las propiedades psicométricas de la escala se probaron en un diseño transversal utilizando validación cruzada (análisis factorial exploratorio y confirmatorio) y estimación de la invarianza (sexo y condición clínica).  Resultados: Un modelo de cuatro factores (baja energía, problemas de sueño, problemas de concentración y disfunción cognitiva subjetiva) en lugar de un modelo original de dos factores (fatiga física y mental) proporcionó mejores índices de bondad de ajuste a los datos. La consistencia interna y la estabilidad de la escala fueron excelentes. Su validez convergente se apoyó en su asociación significativa con la ansiedad, la depresión, el estrés y los síntomas positivos y negativos del espectro de la psicosis. El instrumento no mostró diferencias significativas entre sexos ni condiciones clínicas, y discriminó entre la población general y los pacientes, obteniendo estos últimos puntajes significativamente mayores.  Conclusiones: Sp-CFS es una escala fiable y válida para medir la fatiga en población general y clínica española.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Fatigue]]></kwd>
<kwd lng="en"><![CDATA[Chalder Fatigue Scale (CFS)]]></kwd>
<kwd lng="en"><![CDATA[Spanish population]]></kwd>
<kwd lng="en"><![CDATA[Validation]]></kwd>
<kwd lng="es"><![CDATA[Fatiga]]></kwd>
<kwd lng="es"><![CDATA[Escala de Fatiga de Chalder (CFS)]]></kwd>
<kwd lng="es"><![CDATA[Población española]]></kwd>
<kwd lng="es"><![CDATA[Validación]]></kwd>
</kwd-group>
</article-meta>
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