Results 31 to 40 of about 217,796 (165)

Linking Error Estimation in Fixed Item Parameter Calibration: Theory and Application in Large-Scale Assessment Studies

Foundations
In fixed item parameter calibration (FIPC), an item response theory (IRT) model is estimated with item parameters fixed at reference values to estimate the distribution parameters within a specific group.
Alexander Robitzsch
doaj   +1 more source

Measurement error – the missing link?

South African Journal of Sports Medicine, 2006
Measurement error – the missing link?
openaire   +2 more sources

Measurement Error in Retrospective Work Histories

Survey Research Methods, 2014
Measurement error in retrospective reports of work status has been difficult to quantify in the past. Issues of confidentiality have made access to datasets linking survey responses to a valid administrative source very problematic.
Jose Pina Sánchez, Johan Koskinen, Ian Plewis   +2 more
doaj   +1 more source

Spatially Resolved Cross-Linking Characterization by Imaging Low-Coherence Interferometry

Sensors, 2019
A method to characterize cross-linking differences in polymers such as waveguide polymers has been developed. The method is based on the scan-free information acquisition utilizing a low-coherence interferometer in conjunction with an imaging ...
Christopher Taudt, Bryan Nelsen, Elisabeth Rossegger, Sandra Schlögl, Edmund Koch, Peter Hartmann   +5 more
doaj   +1 more source

Linking of Rasch-Scaled Tests: Consequences of Limited Item Pools and Model Misfit

Frontiers in Psychology, 2021
In the context of item response theory (IRT), linking the scales of two measurement points is a prerequisite to examine a change in competence over time.
Luise Fischer, Luise Fischer, Theresa Rohm, Theresa Rohm, Claus H. Carstensen, Timo Gnambs   +5 more
doaj   +1 more source

Assessing Standard Error Estimation Approaches for Robust Mean-Geometric Mean Linking

AppliedMath
Robust mean-geometric mean (MGM) linking methods enable reliable group comparisons in item response theory models under fixed and sparse differential item functioning.
Alexander Robitzsch
doaj   +1 more source

Information-Weighted and Normal Density-Weighted Haebara Linking

Information
Linking methods based on item response theory aim to place item parameters from different groups, test forms, or test administrations onto a common scale.
Alexander Robitzsch
doaj   +1 more source

Ultra-processed foods in public health nutrition: the unanswered questions

Public Health Nutrition, 2023
There is a growing interest in the study of the degree of food processing and both health and nutritional outcomes. To that end, several definitions of the degree of processing have been proposed.
Michael J Gibney
doaj   +1 more source

Authentic leadership, perceived insider status, error management climate, and employee resilience: A cross-level study

Frontiers in Psychology, 2022
Employee resilience is of great significance for organizations to resist pressures, overcome crises, and achieve sustainable development. However, existing research has largely failed to explore its situational triggers.
Xu Li, Jianyu Zhang
doaj   +1 more source

Bias Reduction in Robust Mean–Geometric Mean Linking via SIMEX

Algorithms
Robust mean–geometric mean (MGM) linking is a method for comparing the performance of two groups on a test involving dichotomous items and is particularly suited to settings with fixed and sparse differential item functioning (DIF).
Alexander Robitzsch
doaj   +1 more source