Results 61 to 70 of about 24,401 (306)

Allele frequency misspecification: effect on power and Type I error of model-dependent linkage analysis of quantitative traits under random ascertainment

open access: yesBMC Genetics, 2006
Background Studies of model-based linkage analysis show that trait or marker model misspecification leads to decreasing power or increasing Type I error rate.
Wilson Alexander F   +4 more
doaj   +1 more source

Testing constancy of unconditional variance in volatility models by misspecification and specification tests

open access: yes, 2016
The topic of this paper is testing the hypothesis of constant unconditional variance in GARCH models against the alternative that the unconditional variance changes deterministically over time.
Terasvirta, Timo   +1 more
core   +1 more source

Pregnancy‐related effect on elexacaftor, tezacaftor and ivacaftor pharmacokinetics in women with cystic fibrosis

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aim The number of pregnancies among women with cystic fibrosis (wwCF) has steadily increased over the past decade. However, the pharmacokinetics (PK) of elexacaftor–tezacaftor–ivacaftor (ETI) during gestation remains uncharacterized, despite its widespread use in this population.
Paulette Magnas   +16 more
wiley   +1 more source

Assessing misspecification of individual homogeneity assumption in multi-state models based on asymptotic theory

open access: yesJournal of Biostatistics and Epidemiology, 2015
Background & Aim: Multi-state models can help better understand the process of chronic diseases such as cancers.  These models  are influenced  by assumptions  like individual  homogeneity.
Ali Zare   +5 more
doaj  

An Alternative Sensitivity Approach for Longitudinal Analysis with Dropout

open access: yesJournal of Probability and Statistics, 2019
In any longitudinal study, a dropout before the final timepoint can rarely be avoided. The chosen dropout model is commonly one of these types: Missing Completely at Random (MCAR), Missing at Random (MAR), Missing Not at Random (MNAR), and Shared ...
Amal Almohisen   +2 more
doaj   +1 more source

Can quartet analyses combining maximum likelihood estimation and Hennigian logic overcome long branch attraction in phylogenomic sequence data? [PDF]

open access: yesPLoS ONE, 2017
Systematic biases such as long branch attraction can mislead commonly relied upon model-based (i.e. maximum likelihood and Bayesian) phylogenetic methods when, as is usually the case with empirical data, there is model misspecification.
Patrick Kück   +4 more
doaj   +1 more source

Building phenotypic character matrices for phylogenetic inference: exploration of 35 years of practice

open access: yesBiological Reviews, EarlyView.
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins   +9 more
wiley   +1 more source

The Perils of Environmental, Social, and Governance (ESG) Controversies: Implications for a Firm's Financial and Nonfinancial Performance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Although ESG controversies are on the rise, research investigating them yields contradictory findings. The paper provides resolutions to the debate through investigating (a) how ESG controversies influence firms' short‐term and long‐term financial performance; (b) how firms navigate ESG controversies' effect; and (c) how ESG controversies ...
Amalesh Sharma   +3 more
wiley   +1 more source

Experiment 1: Misspecification and overlap.

open access: yes, 2023
Relative bias of the MHRATT estimation methods for varying degrees of overlap and different DGPs. Sample size is n = 1500, true MHRATT = 0.8 and no censoring (π = 0). In Scenario (A) there is no model misspecification. All outliers are included. (TIF)
Guilherme W. F. Barros (17598966)   +2 more
core   +1 more source

Financial Constraints and Corporate Sustainability Performance: Do Climate Exposure and People's Climate Attention Matter?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates the relationship between financial constraints and a firm's sustainability performance. Our empirical analysis utilises a panel of 40,445 observations from 9466 listed non‐financial firms across 44 countries, spanning the period from 2002 to 2019.
Boying Xu   +2 more
wiley   +1 more source

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