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    [0] => stdClass Object
        (
            [journal] => stdClass Object
                (
                    [id_jnl] => 85
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    [1] => stdClass Object
        (
            [section] => stdClass Object
                (
                    [section] => 341
                )

        )

    [2] => stdClass Object
        (
            [title] => Array
                (
                    [0] => Diseño de experimentos con usuarios: lecciones aprendidas@es
                    [1] => Diseño de experimentos con usuarios: lecciones aprendidas@es
                    [2] => Design of experiments with users: lessons learned@en
                )

        )

    [3] => stdClass Object
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            [abstract] => Array
                (
                    [0] => Uno de los métodos más comunes en la investigación es la observación de sujetos en laboratorio. La disciplina conocida como HCI (Human-Computer Interaction) estudia la forma en que las personas interactuamos con la tecnología, su intención es adaptar las interfaces de los aparatos a la forma en que las personas nos relacionamos de forma natural con ellos. Los investigadores de HCI cuentan con muy diverso perfil, algunos proceden de las Ciencias de la Computación, otros de la Documentación, otros del Periodismo, por lo que adoptar la experimentación como método de trabajo -poco usual en sus disciplinas- les ha supuesto un aprendizaje y algunos tropiezos en el camino. En este artículo se dan unas pautas sobre cómo plantear un experimento y se comparten ejemplos de casos en los que hubo algún error en la planificación o en la preparación.@es
                    [1] => One of the most common methods in research is the observation of subjects in a laboratory. The discipline known as HCI (Human-Computer Interaction) studies the form in which we people interact with technology, its purpose being to adapt the interfaces of the devices to the way we naturally relate to them. HCI researchers have very different backgrounds: some come from Computer Science, others from Information Science, others from Journalism. Experimentation as a work method is quite unusual in those disciplines, which means they have had to learn it and overcome some setbacks. This article provides with some guidelines regarding how to conceive an experiment, and some case examples are shared wherein some planning or preparing mistakes were made.@en
                )

        )

    [4] => stdClass Object
        (
            [author] => Array
                (
                    [0] => Mari-Carmen Marcos
                )

        )

    [5] => stdClass Object
        (
            [subject] => Array
                (
                    [0] => Experimental design@en
                    [1] => Human-computer interaction@en
                    [2] => User testing@en
                    [3] => Social sciences@en
                    [4] => Diseño de experimentos@es
                    [5] => Interacción persona-ordenador@es
                    [6] => Test de usuarios@es
                    [7] => Ciencias sociales@es
                )

        )

    [6] => stdClass Object
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                    [vol] => 
                    [nr] => 
                    [year] => 
                    [theme] => 
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    [7] => stdClass Object
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            [datePub] => Array
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                    [0] => 2013
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                                    [0] => http://raco.cat/index.php/Hipertext/article/view/266845
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        )

    [10] => stdClass Object
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            [language] => Array
                (
                    [0] => ct
                )

        )

    [11] => stdClass Object
        (
            [license] => Array
                (
                    [0] => stdClass Object
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                            [@xml:lang] => es-ES
                            [#text] => info:eu-repo/semantics/openAccess
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