Sökning: "classical test theory"
Visar resultat 1 - 5 av 44 avhandlingar innehållade orden classical test theory.
1. The Measurement of Subjective Well-Being: Item Response Theory, Classical Test Theory, and Multidimensional Item Response Theory
Sammanfattning : For over 35 years, modern science has conceptualized happiness as subjective well-being, which has until recently been understood as a dual construct consisting of an affective component (positive and negative affect) and a cognitive component (life satisfaction). Nevertheless, for the last five years, theoretical work and both quantitative and qualitative empirical work have suggested that the concept of subjective well-being omits both a lay and an Eastern way of understanding happiness. LÄS MER
2. A Practice Theory in Practice : Analytical Consequences in the Study of Organization and Socio-Technical Change
Sammanfattning : Appealing calls are often made towards the study of phenomena through so-called practice theory. However, the implications of the use of practice theory, if taken seriously in analysis, are rarely discussed. The chief concern of this thesis is the applicability of the most radical dimensions of practice theory. LÄS MER
3. Adolescent mental health : time trends and validity of self-report measures
Sammanfattning : Background: Studies of time trends of adolescent self-reported mental health suggest an increase of mental health symptoms globally. Unfortunately, several studies within the field have methodological problems, such as short time-period between measurements and different mental health measures over time. LÄS MER
4. Information-Theoretic Generalization Bounds: Tightness and Expressiveness
Sammanfattning : Machine learning has achieved impressive feats in numerous domains, largely driven by the emergence of deep neural networks. Due to the high complexity of these models, classical bounds on the generalization error---that is, the difference between training and test performance---fail to explain this success. LÄS MER
5. Isospin Breaking in Kaon Decays to Pions
Sammanfattning : The five different K -> 3 Pi and the three K -> 2 Pi decays are calculated in Chiral Perturbation Theory. The calculation is done using different approximations, to study whether this changes the result significantly. First the isospin approximation is used. Discrepancies are then found between theory and experiment. LÄS MER