<?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>1659-3820</journal-id>
<journal-title><![CDATA[Comunicación]]></journal-title>
<abbrev-journal-title><![CDATA[Comunicación]]></abbrev-journal-title>
<issn>1659-3820</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-38202015000200058</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Resolución de problemas matemáticos en la educación media costarricense: un estudio acerca de la actitud]]></article-title>
<article-title xml:lang="en"><![CDATA[Solving of mathematical problems in Costa Rican secondary education: a study about attitude]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza-Cascante]]></surname>
<given-names><![CDATA[Luis Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Valdés-Ayala]]></surname>
<given-names><![CDATA[Zuleyka]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Agüero-Calvo]]></surname>
<given-names><![CDATA[Evelyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CR</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CR</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CR</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>58</fpage>
<lpage>69</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-38202015000200058&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-38202015000200058&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-38202015000200058&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:En este artículo se exponen los resultados de un estudio realizado sobre de la actitud de los estudiantes de la educación media oficial costarricense hacia la resolución de problemas matemáticos. En dicho estudio, se indagó la existencia de diferencias entre hombres y mujeres y, además, se identificaron los niveles educativos con mejor actitud. La investigación se realizó con una muestra de 3271 estudiantes durante el año 2014.Los resultados muestran que aproximadamente un 20% de los estudiantes tiene una actitud baja o muy baja hacia la resolución de problemas matemáticos, lo cual es poco favorable, y que cerca del 50% tiene una actitud media, es decir, ni baja ni alta. También, los resultados revelan diferencias estadísticamente significativas en el nivel de actitud hacia la resolución de problemas matemáticos por sexo, donde los hombres presentan niveles mayores, aunque con un tamaño del efecto bajo.Los hallazgos sugieren entonces que no hay diferencias en el nivel de actitud entre los estudiantes de décimo y undécimo año, y que estos niveles evidencian niveles más bajos de actitud comparados con sétimo, octavo y noveno; lo anterior resulta preocupante por cuanto los niveles menos favorables de actitud se dan precisamente en los estudiantes más próximos a elegir carrera universitaria, en donde el componente matemático es vital para la selección de opciones en ciencia y tecnología.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:This paper presents the results of a study regarding Costa Rican official public high school students' attitude toward the solving of mathematical problems. In such study, the existence of differences between men and women was researched. The best educational levels with the best attitude were also identified. The research was based upon a sample of 3271 students along the year 2014.The results show that approximately 20% of students has a low or very low attitude in regards to solving mathematical problems, which is not really favorable; 50% has a middle attitude, this is, neither low nor high. Also, the results reveal significant statistical differences in the level of attitude toward solving mathematical problems based upon sex, showing that men have the higher levels, even though the amount of the effect is low.The findings suggest that there are no differences in the level of attitude between tenth graders and eleventh graders, being these levels the one that show the lowest attitude in comparison to the seventh, eighth and ninth grades, which becomes worrisome since the least favorable levels of attitude are precisely found in those students who will soon face the choice of a university career, where the mathematical component is vitalin order to choose technology or science options.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Actitud]]></kwd>
<kwd lng="es"><![CDATA[resolución de problemas]]></kwd>
<kwd lng="es"><![CDATA[problemas matemáticos]]></kwd>
<kwd lng="es"><![CDATA[aprendizaje de la matemática]]></kwd>
<kwd lng="es"><![CDATA[educación media]]></kwd>
<kwd lng="es"><![CDATA[afectividad]]></kwd>
<kwd lng="en"><![CDATA[Attitude]]></kwd>
<kwd lng="en"><![CDATA[problem solving]]></kwd>
<kwd lng="en"><![CDATA[mathematical problems]]></kwd>
<kwd lng="en"><![CDATA[math learning]]></kwd>
<kwd lng="en"><![CDATA[middle education]]></kwd>
<kwd lng="en"><![CDATA[affectivity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguayo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cómo realizar "paso a paso" un contraste de hipótesis con SPSS para Windows y alternativamente con EPIINFO y EPIDAT: (II) Asociación entre una variable cuantitativa y una categórica (comparación de medias entre dos o más grupos independientes).]]></source>
<year>2004</year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[An investigation of mathematics anxiety among sixth through eighth grade students in Turkey.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Birgin]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Balo&#287;lub]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Çatl&#305;o&#287;lu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gürbüz]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Learning and individual differences. Journal of Psychology and Education]]></source>
<year>2010</year>
<volume>20</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>654-8</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[La unidimensionalidad de un instrumento de medición: perspectiva factorial.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burga]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista de Psicología de la PUCP]]></source>
<year>2006</year>
<volume>XXIV</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>53-80</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Callejo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Un club matemático para la diversidad.]]></source>
<year>1994</year>
<publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Narcea]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Picado]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio de la ansiedad matemática en estudiantes de colegios técnicos de la educación media costarricense.]]></source>
<year>2014</year>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alzamora]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estadística para la tesis de posgrado.]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Londres ]]></publisher-loc>
<publisher-name><![CDATA[LULU International]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Resolución de problemas: ideas, tendencias e influencias en España.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Luengo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Camacho]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lorenzo]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Investigación en Educación Matemática XII]]></source>
<year>2008</year>
<page-range>113-40</page-range><publisher-loc><![CDATA[Badajoz ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Española de Investigación en Educación Matemática, SEIEM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Corrales]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio del nivel de ansiedad matemática en estudiantes de tres colegios académicos nocturnos costarricenses.]]></source>
<year>2014</year>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Else-Quest]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Shibley Hyde]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cross-National Patterns of Gender Differences in Mathematics: A MetaAnalysis.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Linn]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Psychological Bulletin American Psychological Association]]></source>
<year>2010</year>
<volume>136</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>103-27</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eysenck]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Derakshan]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anxiety and cognitive performance: attentional control theory.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Gutiérrez - Calvo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Emotion]]></source>
<year>2007</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>336-53</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eysenck]]></surname>
<given-names><![CDATA[M. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anixiety and performance: The processing efficiency theory.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Gutiérrez - Calvo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cognition andEmotion]]></source>
<year>1992</year>
<volume>6</volume>
<page-range>409-34</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelo de comportamiento de la organización virtual: una aplicación empírica a los sistemas de franquicia]]></source>
<year>2003</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de las Palmas de Gran Canaria]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frías-Navarro]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prácticas del análisis factorial exploratorio (afe) en la investigación sobre Conducta del consumidor y marketing.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Pascual]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Suma Psicológica]]></source>
<year>2012</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>45-58</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gil]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Blanco]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El dominio afectivo en el aprendizaje de las matemáticas. Una revisión de sus descriptores básicos.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Iberoamericana de Educación Matemática]]></source>
<year>2005</year>
<volume>2</volume>
<page-range>15-32</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gil]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Blanco]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El papel de la afectividad en la resolución de problemas matemáticos.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista de educación]]></source>
<year>2006</year>
<volume>340</volume>
<page-range>551-69</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Chacón]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Matemática Emocional: Los afectos en el aprendizaje matemático.]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Narcea, S. A. Ediciones]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Suárez]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Tuero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diferencias de género en actitudes hacia las matemáticas en la enseñanza obligatoria.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Da Silva]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Iberoamericana de Psicología y Salud]]></source>
<year>2012</year>
<volume>3</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>55-73</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Blanco]]></surname>
<given-names><![CDATA[L.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trastornos emocionales ante la educación matemática.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Aplicaciones de Intervención Psicopedagógica. Pirámide]]></source>
<year>2001</year>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The Nature, Effects, and Relief of Mathematics Anxiety.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hembree]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal for Research in Mathematics Education]]></source>
<year>1990</year>
<volume>21</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>33-46</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Estado del arte de creencias y actitudes hacia las matemáticas.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cuadernos de Educación y Desarrollo]]></source>
<year>2011</year>
<volume>3</volume>
<numero>24</numero>
<issue>24</issue>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jain]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mathematics anxiety as a function of multidimensional selfregulation and self-efficacy.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Dowson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Contemporary Educational Psychology]]></source>
<year>2009</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>240-9</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aplicación del modelo de Rasch, en el análisis psicométrico de una prueba de diagnóstico en matemática.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Montero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista digital Matemática, Educación e Internet]]></source>
<year>2013</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-23</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diseño y validación de cuestionarios.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[De la Fuente-Solana]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Pantoja-Vallejo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual básico para la realización de tesinas, tesis y trabajos de investigación.]]></source>
<year>2013</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Editorial EOS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mato]]></surname>
<given-names><![CDATA[M. D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos generales de las variables actitud y ansiedad sobre el rendimiento en matemáticas en alumnos de ESO. Implicaciones para la práctica educativa.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ciencias psicológicas]]></source>
<year>2010</year>
<volume>IV</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>27-40</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Estrés académico en estudiantes universitarios.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martín]]></surname>
<given-names><![CDATA[I. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Apuntes de Psicología]]></source>
<year>2007</year>
<volume>25</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>87-99</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McGraw]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Lubienski]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A closer look at gender in NAEP mathematics achievement and affect data: Intersections with achievement, race/ethnicity, and socioeconomic status.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Strutchens]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal for Research in Mathematics Education]]></source>
<year>2006</year>
<volume>37</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>129-50</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mena]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio de la ansiedad matemática en los cursos Matemática General, Cálculo Diferencial e Integral y Ecuaciones Diferenciales del Instituto Tecnológico de Costa Rica en el I Semestre 2013.]]></source>
<year>2014</year>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meza]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Agüero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Suárez]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
</person-group>
<source><![CDATA[ESAM: Estudio de la ansiedad matemática en la educación media.]]></source>
<year>2014</year>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="">
<collab>Ministerio de Educación Pública</collab>
<source><![CDATA[Reforma curricular en ética, estética y ciudadanía programas de estudio de matemáticas I y II Ciclo de la Educación Primaria, III Ciclo de Educación General Básica y Educación Diversificada.]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Costa Rica. ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Factores de la actitud y ansiedad al aprendizaje de la matemática en estudiantes adolescentes de la ciudad de Milagro. La relación de la estructura familiar y el rendimiento académico.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Molina]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Iberoamericana de Educación Matemática]]></source>
<year>2012</year>
<volume>29</volume>
<page-range>109-20</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Monje]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Tyteca]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Resolución de problemas y ansiedad matemática: profundizando en su relación.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Unión:Revista Iberoamericana de Educación Matemática]]></source>
<year>2012</year>
<volume>32</volume>
<page-range>45-62</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Núñez-Peña]]></surname>
<given-names><![CDATA[M.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Suárez-Pellicioni]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of math anxiety on student success in higher education.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Bono]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[International Journal of Educational Research]]></source>
<year>2013</year>
<volume>58</volume>
<page-range>36-43</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Palacios]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Las actitudes hacia las matemáticas: construcción y validación de un instrumento para su medida.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista de Psicodidáctica de la Universidad del país Vasco]]></source>
<year>2014</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>67-91</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez-Tyteca]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[La ansiedad matemática como centro de un modelo causal predictivo de la elección de carreras]]></source>
<year>2012</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Granada]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The sum of all fears.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perina]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Psychology Today]]></source>
<year>2002</year>
<volume>35</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>19</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Primi]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Busdraghi]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Tomasetto]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Morsanyi]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measuring math anxiety in Italian college and high school students: validity, reliability and gender invariance of the Abbreviated Math Anxiety Scale (AMAS).]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Chiesi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Learning and Individual Differences]]></source>
<year>2014</year>
<volume>34</volume>
<page-range>51-6</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Affective variables and mathematics education.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[L. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Elementary School Journal]]></source>
<year>1984</year>
<volume>84</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>558-81</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rubinsten]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Bialik]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Exploring the relationship between math anxiety and gender through implicit measurement.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Solar]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Frontiers in Human Neuroscience]]></source>
<year>2012</year>
<numero>6</numero>
<issue>6</issue>
<page-range>1-11</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Relación entre rendimiento en solución de problemas y factores afectivo-motivacionales en alumnos con y sin dificultades del aprendizaje.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tárraga]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Apuntes de Psicología]]></source>
<year>2008</year>
<volume>26</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>143-8</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tejedor]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Orza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Carratalá]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variables explicativas de la ansiedad frente a las matemáticas: un estudio de una muestra de 6º de primaria.]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Navas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Anuario de psicología]]></source>
<year>2009</year>
<volume>40</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>345-55</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The relation of strenght of stimulus to rapidity of habit-formation.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yerkes]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dodson]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Comparative Neurology andPsychology]]></source>
<year>1908</year>
<volume>18</volume>
<page-range>459-82</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
