Mostrando recursos 1 - 20 de 71

  1. Deutschsprachige Fragebögen zur Usability-Evaluation im Vergleich

    Figl, Kathrin
    Für die Konstruktion gebrauchstauglicher Anwendungssysteme ist eine exakte Evaluierung der Usability eine wertvolle Unterstützung. Zu diesem Zweck werden in der Praxis häufig Usability-Fragebögen herangezogen. Im deutschen Sprachraum sind die beiden Fragebögen Isonorm 9241/10 und Isometrics, die beide Software gemäß der EN ISO 9241-110 evaluieren, weit verbreitet. Die vorliegende Studie widmete sich einem Vergleich dieser beiden Fragebögen hinsichtlich testtheoretischer Gütekriterien. Im Rahmen eines experimentellen Designs wurden die beiden Fragebögen eingesetzt um die Usability von zwei Standard-Softwarepaketen zu bewerten. Hinsichtlich der inhaltlichen Validität der Fragebögen zeigten die Ergebnisse eine hohe Übereinstimmung der Usability-Messung der beiden Fragebögen. Auch weitere testtheoretische Analysen lieferten eine...

  2. Cognitive Effectiveness of Visual Instructional Design Languages

    Figl, Kathrin; Derntl, Michael; Rodriguez, Manuel Caeiro; Botturi, Luca
    The introduction of learning technologies into education is making the design of courses and instructional materials an increasingly complex task. Instructional design languages are identified as conceptual tools for achieving more standardized and, at the same time, more creative design solutions, as well as enhancing communication and transparency in the design process. In this article we discuss differences in cognitive aspects of three visual instructional design languages (E²ML, PoEML, coUML), based on user evaluation. Cognitive aspects are of relevance for learning a design language, creating models with it, and understanding models created using it. The findings should enable language constructors...

  3. Dimensions of global population projections: what do we know about future population trends and structures?

    Lutz, Wolfgang; KC, Samir
    The total size of the world population is likely to increase from its current 7 billion to 8-10 billion by 2050. This uncertainty is because of unknown future fertility and mortality trends in different parts of the world. But the young age structure of the population and the fact that in much of Africa and Western Asia, fertility is still very high makes an increase by at least one more billion almost certain. Virtually, all the increase will happen in the developing world. For the second half of the century, population stabilization and the onset of a decline are likely....

  4. Dimensions of global population projections: what do we know about future population trends and structures?

    Lutz, Wolfgang; KC, Samir
    The total size of the world population is likely to increase from its current 7 billion to 8-10 billion by 2050. This uncertainty is because of unknown future fertility and mortality trends in different parts of the world. But the young age structure of the population and the fact that in much of Africa and Western Asia, fertility is still very high makes an increase by at least one more billion almost certain. Virtually, all the increase will happen in the developing world. For the second half of the century, population stabilization and the onset of a decline are likely....

  5. Dimensions of global population projections: what do we know about future population trends and structures?

    Lutz, Wolfgang; KC, Samir
    The total size of the world population is likely to increase from its current 7 billion to 8-10 billion by 2050. This uncertainty is because of unknown future fertility and mortality trends in different parts of the world. But the young age structure of the population and the fact that in much of Africa and Western Asia, fertility is still very high makes an increase by at least one more billion almost certain. Virtually, all the increase will happen in the developing world. For the second half of the century, population stabilization and the onset of a decline are likely....

  6. Dimensions of global population projections: what do we know about future population trends and structures?

    Lutz, Wolfgang; KC, Samir
    The total size of the world population is likely to increase from its current 7 billion to 8-10 billion by 2050. This uncertainty is because of unknown future fertility and mortality trends in different parts of the world. But the young age structure of the population and the fact that in much of Africa and Western Asia, fertility is still very high makes an increase by at least one more billion almost certain. Virtually, all the increase will happen in the developing world. For the second half of the century, population stabilization and the onset of a decline are likely....

  7. Natural Disasters and Human Capital Accumulation

    Crespo Cuaresma, Jesus
    The empirical literature on the relationship between natural disaster risk and investment in education is inconclusive. Model averaging methods in a framework of crosscountry and panel regressions show an extremely robust negative partial correlation between secondary school enrollment and natural disaster risk. This result is driven exclusively by geologic disasters. Exposure to natural disaster risk is a robust determinant of differences in secondary school enrollment between countries but not necessarily within countries Natural disasters, human capital, education, school enrollment, Bayesian model averaging.

  8. Unpleasant Surprises: Sovereign Default Determinants and Prospects, Policy Research Working Papers, 5401

    Bandiera, Luca; Crespo Cuaresma, Jesus; Vincelette, Gallina A.
    This paper uses model averaging techniques to identify robust predictors of sovereign default episodes on a pooled database for 46 emerging economies over the period 1980-2004. Sovereign default episodes are defined according to Standard & Poor s or by non-concessional International Monetary Fund loans in excess of 100 percent of the country s quota. The authors find that, in addition to the level of indebtedness, the quality of policies and institutions is the best predictor of default episodes in emerging market countries with relatively low levels of external debt. For emerging market countries with a higher level of debt, macroeconomic...

  9. Education will be at the heart of 21st century demography

    Lutz, Wolfgang

  10. Education or wealth: which matters more for reducing child mortality in developing countries?

    Fuchs, Regina; Pamuk, Elsie; Lutz, Wolfgang
    This article systematically addresses mother's education as a fundamental determinant of child mortality in developing countries. The main proposition is that setting the right policy priorities in developing countries requires distinguishing between the role of education and that of material resources in influencing child survival. Despite a tendency to regard both education and economic resources as interchangeable indicators of socioeconomic status, determining their relative importance with respect to child health is important because policies for enhancing one or the other can be quite different. We begin with a comprehensive review of the literature addressing the different causal mechanisms through which maternal education impacts on...

  11. A Quality Framework for Statistics based on Administrative Data Sources using the Example of the Austrian Census 2011

    Berka, Christopher; Humer, Stefan; Moser, Mathias; Lenk, Manuela; Schwerer, Eliane; Rechta, Henrik
    Along with the implementation of a register-based census we develop a methodological framework to assess administrative data sources for statistical use. Key aspects for the quality of these data are identified in the context of hyperdimensions and embedded into a process flow. Based on this approach we develop a structural quality framework and suggest a concept for quality assessment and several quality measures.

  12. Lateinamerika zwischen Krise und Boom

    Becker, Joachim

  13. Editorial zum Sonderheft "EU-Armutspolitik und ihre Relevanz für Österreich"

    Angel, Stefan; Eiffe, Franz; Einböck, Marina; Heitzmann, Karin
    Die AutorInnen fungieren als HerausgeberInnen des Sonderbandes des "Kurswechsel" und skizzieren in ihrem Editorial die Relevanz des Themas und die Inhalte des Sonderheftes.

  14. Editorial zum Sonderheft "EU-Armutspolitik und ihre Relevanz für Österreich"

    Angel, Stefan; Eiffe, Franz F.; Einböck, Marina; Heitzmann, Karin
    Die AutorInnen fungieren als HerausgeberInnen des Sonderbandes des "Kurswechsel" und skizzieren in ihrem Editorial die Relevanz des Themas und die Inhalte des Sonderheftes.

  15. EU in der Krise: Bruchlinien zwischen Zentrum und Peripherie

    Becker, Joachim

  16. Editorial: Krise in EUropa

    Becker, Joachim; Springler, Elisabeth

  17. Bildung und Demokratie: Schafft Bildung sozialen Zusammenhalt?

    Sauer, Petra; Völkerer, Petra
    (no abstract available)

  18. Krisenmuster und Anti-Krisen-Politiken in Osteuropa

    Becker, Joachim
    (no abstract available)

  19. Finanzialisierung und Investitionsverhalten von Industrie-Aktiengesellschaften in Österreich

    Cetkovic, Predrag; Stockhammer, Engelbert
    (no abstract available)

  20. Knowledge Transfer by Austrian Banks to the Transition Economies of Central, Eastern and South Eastern Europe

    Haiss, Peter; Schellander, Elisabeth
    Since the opening of the Central, Eastern and South Eastern European (CESEE) banking market, foreign banks, have started to invest in the financial sector of emerging economies. Economic research highlights that foreign banks have brought advanced technology, improved management expertise, upgraded risk management techniques and generally more efficient and competitive banking practices into CESEE countries (Clarke, Cull, Peria and Sànchez, 2002; Eller, Haiss and Steiner, 2006). However, there is hardly evidence about how this large-scale knowledge transfer has been achieved and what knowledge has actually been transferred. This paper intends to fill this gap. Two in-depth case studies of bank...

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