Results 121 to 130 of about 4,179,049 (359)
آموزش پزشکی, 2017 BACKGROUND AND OBJECTIVE: One of the important challenges in education in recent years will be the adoption of mobile devices in the learning sphere. This study aimed to psychometric of the attitudes towards mobile learning scale.
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doaj
Journal of Pain Research, 2021 Yang Luo,1,* Sisi Li,2,* Jingting He,1 Dan Cai,3 Yi Dai,3 Lijuan Feng,1 Chengqin Sun,1 Xiaoping Zhu4 1Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of
Luo Y +7 more
doaj
Validation and validity beyond Messick
Per Linguam, 2013 Following the texts of the Messick (1981: 10; 1980: 1023) formulations more closely, another representation of his well-known “Facets of validity” matrix is possible. This matrix can be read as four claims about language testing (“The technical adequacy of inferences made from test scores depends on multiple sources of empirical evidence; The ...
openaire +4 more sources
Evidence Tetris in the Pixelated World of Validity Threats [PDF]
Valid empirical studies build confidence in scientific findings. Fortunately, it is now common for software engineering researchers to consider threats to validity when designing their studies and to discuss them as part of their publication. Yet, in complex experiments with human participants, there is often an overwhelming number of intuitively ...
arxiv +1 more source
Development and Psychometric Testing of the Older Adults’ Technology Use at Home Scale
Journal of Client-centered Nursing Care, 2020 Background: Aging is associated with changes in some capabilities. Using technology can help older adults to continue living independently at home. This study aimed to develop the Older Adults’ Technology Use at Home Scale (OATUHS) and evaluate its ...
Fatemeh Sadat Izadi-Avanji +1 more
doaj
Concentration inequalities of the cross-validation estimate for stable predictors [PDF]
arXiv, 2010 In this article, we derive concentration inequalities for the cross-validation estimate of the generalization error for stable predictors in the context of risk assessment. The notion of stability has been first introduced by \cite{DEWA79} and extended by \cite{KEA95}, \cite{BE01} and \cite{KUNIY02} to characterize class of predictors with infinite VC ...
arxiv
Tuning Parameter Selection in Regularized Estimations of Large Covariance Matrices [PDF]
arXiv, 2013 Recently many regularized estimators of large covariance matrices have been proposed, and the tuning parameters in these estimators are usually selected via cross-validation. However, there is no guideline on the number of folds for conducting cross-validation and there is no comparison between cross-validation and the methods based on bootstrap ...
arxiv
Validity and Failure of the Boltzmann Weight
, 2018 The dynamics and thermostatistics of a classical inertial XY model, characterized by long-range interactions, are investigated on $d$-dimensional lattices ($d=1,2,$ and 3), through molecular dynamics.
Cirto, Leonardo J. L. +3 more
core +1 more source
Expressing Validity: Towards a Self-Sufficient Inferentialism [PDF]
, 2020 For semantic inferentialists, the basic semantic concept is validity. An inferentialist theory of meaning should offer an account of the meaning of "valid." If one tries to add a validity predicate to one's object language, however, one runs into ...
Hlobil, Ulf
core
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Training deep learning dose prediction models for the latest cutting‐edge radiotherapy techniques, such as AI‐based nodal radiotherapy (AINRT) and Daily Adaptive AI‐based nodal radiotherapy (DA‐AINRT), is challenging due to limited data.
Hui‐Ju Wang +5 more
wiley +1 more source