Sökning: "Item response theory model"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden Item response theory model.

1. 11. Exploring and modeling response process data from PISA : inferences related to motivation and problem-solving

   Författare :Erik Lundgren; Hanna Eklöf; Inga Laukaityte; Per-Erik Lyrén; Samuel Greiff; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; response processes; large-scale assessments; motivation; problem-solving; computational modeling; Bayesian modeling; didactics of educational measurement; beteendevetenskapliga mätningar;

   Sammanfattning : This thesis explores and models response process data from large-scale assessments, focusing on test-taking motivation, problem-solving strategies, and questionnaire response validity. It consists of four studies, all using data from PISA (Programme for International Student Assessment) data. LÄS MER

3. 12. Characteristics of the functional independence measure in patients with neurological disorders. Measurement through Rasch analysis

   Författare :Åsa Lundgren Nilsson; Göteborgs universitet; []
   Nyckelord :rehabilitation; assessment; measurement; stroke; traumatic brain injury; spinal cord injury; Rasch; item response theory;

   Sammanfattning : The Functional Independence Measure (FIMTM) is an internationally widely used outcome measure, measuring disability in terms of dependence or need of assistance. The aim of this study was to evaluate the structural characteristics of FIMTM using the Rasch model, with regard to scoring function, cross-cultural validity in Europe and cross-diagnostic validity within rehabilitation units in Scandinavia. LÄS MER

4. 13. Theory and validity evidence for a large-scale test for selection to higher education

   Författare :Jonathan Wedman; Marie Wiberg; Per-Erik Lyrén; Jo-Anne Baird; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SweSAT; validity; theoretical model; score reporting; subscores; DIF; equating; linking; Högskoleprovet; validitet; teoretisk modell; rapportering av provpoäng; ekvivalering; länkning; didactics of educational measurement; beteendevetenskapliga mätningar;

   Sammanfattning : Validity is a crucial part of all forms of measurement, and especially in instruments that are high-stakes to the test takers. The aim of this thesis was to examine theory and validity evidence for a recently revised large-scale instrument used for selection to higher education in Sweden, the Swedish Scholastic Assessment Test (SweSAT), as well as identify threats to its validity. LÄS MER

5. 14. Prior Knowledge and Recognition Memory : a Computational Modeling Approach

   Författare :Johan Hellman; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Recognition memory; Episodic memory; Pre-experimental familiarity; Event-Related Potentials; Item variability; Receiver-Operating Characteristics; Computational Models;

   Sammanfattning : For more than a century, an immense interest has been devoted to the study of recognition memory, where a multitude of memory phenomena has been explained. Recognition memory is usually described with parsimonious measurement and statistical models, stemming from dual process theory and signal detection theory. LÄS MER

7. 15. Pharmacometrics to improve clinical benefit assessment in oncology

   Författare :Emilie Schindler; Lena E Friberg; Mats O Karlsson; Rik de Greef; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nonlinear mixed effect models; NONMEM; pharmacokinetics; pharmacodynamics; VEGF; SLD; targeted therapies; IRT; FDG-PET; SUVmax; Farmaceutisk vetenskap; Pharmaceutical Science;

   Sammanfattning : The high attrition rate in oncology drug development calls for new approaches that would increase the understanding of drugs’ efficacy and safety profiles. This thesis focuses on the development of pharmacometric models to characterize and quantify the relationships between drug exposure, circulating and imaging biomarkers, adverse effects, overall survival (OS), and patient-reported outcomes (PROs). LÄS MER