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2013 Digital Heritage International Congress (DigitalHeritage), 2013
For the montage of large true to scale image plans the high quality of rectification of all single images is a major requirement. An automatic image processing with marker matching and rectification of IRT image stacks is now enabled with the help of newly developed optothermal markers.
Franzen, C. +3 more
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For the montage of large true to scale image plans the high quality of rectification of all single images is a major requirement. An automatic image processing with marker matching and rectification of IRT image stacks is now enabled with the help of newly developed optothermal markers.
Franzen, C. +3 more
openaire +2 more sources
Educational Measurement: Issues and Practice, 1991
The purpose of this instructional module is to provide the basis for understanding the process of score equating through the use of item response theory (IRT). A context is provided for addressing the merits of IRT equating methods. The mechanics of IRT equating and the need to place parameter estimates from separate calibration runs on the same scale ...
Linda L. Cook, Daniel R. Eignor
openaire +1 more source
The purpose of this instructional module is to provide the basis for understanding the process of score equating through the use of item response theory (IRT). A context is provided for addressing the merits of IRT equating methods. The mechanics of IRT equating and the need to place parameter estimates from separate calibration runs on the same scale ...
Linda L. Cook, Daniel R. Eignor
openaire +1 more source
European Journal of Pediatrics, 2012
Cystic fibrosis (CF) is a life-threatening disease for which early diagnosis following newborn screening (NBS) improves the prognosis. We performed a prospective assessment of the immunoreactive trypsinogen (IRT)/DNA/IRT protocol currently in use nationwide, versus the IRT/pancreatitis-associated protein (PAP) and IRT/PAP/DNA CF NBS protocols.
Veronika, Krulišová +14 more
openaire +2 more sources
Cystic fibrosis (CF) is a life-threatening disease for which early diagnosis following newborn screening (NBS) improves the prognosis. We performed a prospective assessment of the immunoreactive trypsinogen (IRT)/DNA/IRT protocol currently in use nationwide, versus the IRT/pancreatitis-associated protein (PAP) and IRT/PAP/DNA CF NBS protocols.
Veronika, Krulišová +14 more
openaire +2 more sources
Psychometrika, 2008
It is common practice in IRT to consider items as fixed and persons as random. Both, continuous and categorical person parameters are most often random variables, whereas for items only continuous parameters are used and they are commonly of the fixed type, although exceptions occur.
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It is common practice in IRT to consider items as fixed and persons as random. Both, continuous and categorical person parameters are most often random variables, whereas for items only continuous parameters are used and they are commonly of the fixed type, although exceptions occur.
openaire +2 more sources
2019
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