Results 21 to 30 of about 25,544 (263)
Incorporating nonlinearity into mediation analyses
BMC Medical Research Methodology, 2017 Background Mediation is an important issue considered in the behavioral, medical, and social sciences. It addresses situations where the effect of a predictor variable X on an outcome variable Y is explained to some extent by an intervening, mediator ...
George J. Knafl +5 more
doaj +1 more source
Censoring Balancing Functions for Undetected Probably Significant Effects in Cox Regression
International Journal of Mathematics and Mathematical Sciences, 2023 Weighted Cox regression models were proposed as an alternative to the standard Cox proportional hazards models where consistent estimators can be obtained with more relative strength compared to unweighted cases. We proposed censoring balancing functions
Ildephonse Nizeyimana +3 more
doaj +1 more source
Measuring and Comparing Student Performance: A New Technique for Assessing Directional Associations
Education Sciences, 2017 Measuring and comparing student performance have been topics of much interest for educators and psychologists. Particular attention has traditionally been paid to the design of experimental studies and careful analyses of observational data.
Lingzhi Chen, Ričardas Zitikis
doaj +1 more source
Agency conflicts, firm value, and monitoring mechanisms: An empirical evidence from Indonesia
Cogent Economics & Finance, 2020 Using a linear model, previous studies on the ownership concentration–firm performance nexus have produced inconsistent empirical findings and found no consensus concerning the measure of agency conflict control mechanism. Using a non-monotonic model and
Faisal Faisal +2 more
doaj +1 more source
Shock and Vibration, 2022 The objective of this research is to provide simplified equations to fix the steel mechanical parameters when applied to all-steel buckling restrained braces (BRBs) whiting a whole theoretic structural calculation. These equations can be mainly useful in
Ariel Catalán +3 more
doaj +1 more source
Atmosphere, 2020 In this paper, the rainfall trend of the West Coast Plain and Hill Agro-Climatic Region is analyzed for 117 years (1901–2017). This region is a globally recognized biodiversity hotspot and known for one of the highest rainfall receiving regions in India.
Atul Saini +6 more
doaj +1 more source
Developments in the Built Environment, 2022 Non-destructive tests that cause no damage to concrete components can be used in rehabilitation works to determine concrete mechanical properties, such as the modulus of elasticity. In this paper, models are presented to predict the modulus of elasticity
Víctor Revilla-Cuesta +4 more
doaj +1 more source
Testing regression monotonicity in econometric models [PDF]
Econometric Theory, 2012 Monotonicity is a key qualitative prediction of a wide array of economic models derived via robust comparative statics. It is therefore important to design effective and practical econometric methods for testing this prediction in empirical analysis.
openaire +6 more sources
Efficient computation of locally monotonic regression [PDF]
Revista de Ingeniería, 1996 Locally monotonic regression provides a way of smoothing signals under the smoothness criterion of local monotonicity, which sets a restriction on how often a signal may change trend (increasing to decreasing, or vice versa). So far, the applicability of locally monotonic regression has been limited by the high computational costs of the available ...
Ramiro de la Vega +1 more
openaire +1 more source
BirdsFor three regions of South Africa (Greater Gauteng, Greater Cape Town and Greater Durban) with the greatest coverage by bird atlas (SABAP2) fieldwork, we related arrival timing and abundance in each region of a long-distance migrant bird, the Barn ...
Les G. Underhill, Magdalena Remisiewicz
doaj +1 more source