Browsing by Subject "Cluster"

Now showing 1 - 4 of 4
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    Herramientas estadísticas para la evaluación del impacto ambiental de la acuicultura
    (2018-12-26) Sanz-Lazaro, Carlos; Facultad de Biología
    GUión para realizar diversas rutinas estadísticas univariantes y multivariantes utilizando datos de macrofauna bentónica y variables ambientales de muestreos que son básicas en la evaluación ambiental de la acuicultura
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    "My life is not going to have any meaning". Personality and vulnerability to depression in Spanish youth
    (Universidad de Murcia. Servicio de Publicaciones, 2021) López-Mora, Clara; González-Hernández, Juan
    Adolescents are a group at risk of developing depressive disorders, faced with a multitude of psychosocial circumstances and the resources available to meet vital needs. The risk of depression is associated with high avoidance of harm, low selfdirection, and low persistence. The aim of the work was to explore the differences between various personality profiles on elements of depressive process (presence of distress and absence of eustress) in adolescents. The presence of depression was evaluated through the Multicultural Inventory of Depression and personality through the Temperament and Character Questionnaire in a total of 229 participants, (n = 121 males) (M age = 14.79; SD = 1.61). The exploratory cluster analyses showed the existence of 3 adolescent profiles based on temperament and character, being those adolescents with low persistence and self-transcendence, with high self-directedness, harm avoidance and rewards dependency who showed the highest indicators of depression. Specifically, significant differences were found in distress scores with adolescents in profile 3 having the highest indicators of state distress (F (224, 4) = 21.73; p < .01) and trait (F (224, 4) = 23.00; p < .01) with respect to adolescents in cluster 1 and cluster 2. In addition, they also had significantly lower scores on the indicators of eustrés state (F (224, 4) = 11.59; p < .01) and trait (F (224, 4) = 12.31; p < .01). The discussion focuses on the usefulness of Moscoso and Coninger's theories as frameworks for understanding the processes of acquisition, and risk of depression in adolescents.
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    "My life is not going to have any meaning." Personality and vulnerability to depression in Spanish youth
    (Universidad de Murcia. Servicio de Publicaciones, 2021) López-Mora, Clara; González-Hernández, Juan
    Los adolescentes son un grupo de riesgo para desarrollar trastornos depresivos y que se enfrentan a una multitud de circunstancias psicosociales y a los recursos disponibles para satisfacer sus necesidades vitales. El riesgo de depresión está asociado con una alta evitación de daños, una baja autodirección y una baja persistencia. El objetivo de la labor fue explorar las diferencias entre los diferentes perfiles de personalidad entre los elementos del proceso depresivo (presencia de angustia y ausencia de eustrés) en los adolescentes. La presencia de depresión se evaluó a través del Inventario Multicultural de Depresión y la personalidad a través del Cuestionario de Temperamento y Carácter en un total de 229 participantes, (n = 121 varones) (edad M = 14.79; DT = 1.61). Los análisis exploratorios por conglomerados mostraron la existencia de 3 perfiles de adolescentes basados en el temperamento y el carácter, siendo aquellos adolescentes con baja persistencia y auto-trascendencia, con alta auto-dirección, evitación de daños y dependencia de las recompensas quienes mostraron los más altos indicadores de depresión. Específicamente, se encontraron diferencias significativas en las puntuaciones de angustia con los adolescentes del perfil 3 que tenían los indicadores más altos de angustia de estado (F (224, 4) = 21.73; p < .01) y rasgo (F (224, 4) = 23.00; p < .01) con respecto a los adolescentes del grupo 1 y del grupo 2. Además, también tuvieron puntuaciones significativamente más bajas en los indicadores de estado eustrés (F (224, 4) = 11.59; p < .01) y rasgo (F (224, 4) = 12.31; p < .01). La discusión se centra en la utilidad de las teorías de Moscoso y Coninger como marcos para comprender los procesos de adquisición y el riesgo de depresión en los adolescentes.
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    Relationship between management information systems and corporate performance
    (2015) Pérez-Méndez, José Antonio; Machado-Cabezas, Ángel
    The literature review on the success of management information systems (IS) provides empirical evidence that mere investment in IS and New Management Tools (NMTs) does not guarantee better business results. Aiming to contribute to the knowledge of the factors explaining the success of IS implementation, this paper classifies them through cluster analysis, with a sample of Spanish companies according to the valuation given by their finance directors (CFOs) to the quality of such systems and their use for strategic purposes. This classification helps to answer three questions: do companies that better rate their IS improve their performance? How do IS quality and strategy affect results? Is there a positive relationship between the use of NMTs and improvement in performance? Through the non-parametric Kruskal–Wallis test and a partial least squares (PLS) model results are yielded that support the first question and show the positive effect of the IS quality and strategy on improving corporate profitability. Logistic regression showed an interaction between the use of NMTs and the IS strategic approach with positive effects on improving profitability. The results of this study have significant implications for companies, suggesting that investment in new IS and NMTs must be coupled with a clear sense of strategy.