Results 121 to 130 of about 379,899 (296)
Bringing External Validity into Sociological Research
The so-called causal revolution that has spread through economics and into adjacent social sciences, including sociology, has been very much concerned with developing methods by which to arrive at credible causal estimates, especially in nonexperimental,
Pan, G, Breen, R
core +1 more source
The (misconceived) distinction between internal and external validity [PDF]
Researchers often aim to make correct inferences both about that which is actually studied (internal validity) and about what the results generalize to (external validity).
Wallin, Annika, Persson, Johannes
core
Transferability of Military-Specific Cognitive Research to Military Training and Operations
Christopher A. J. Vine +6 more
doaj +1 more source
Causal learning with two confounded causes over weeks
Prior research shows that, when making causal inferences, people can control for alternative causes. However, these studies utilize artificial inter-trial intervals on the order of seconds; in real-life situations, people often experience data over days ...
Benjamin M. Rottman
doaj +1 more source
Objective The aim of this study was to evaluate the sensitivity of the 2023 American College of Rheumatology (ACR)/EULAR classification criteria for antiphospholipid syndrome (APS) in a real‐world cohort of women diagnosed with primary obstetric APS (oAPS) and to assess their ability to identify patients at risk of future pregnancy complications ...
Francesca Ruffilli +10 more
wiley +1 more source
Associations of Rheumatoid Arthritis Disease Activity With Frailty Over Five Years of Follow‐up
Objective To evaluate whether rheumatoid arthritis (RA) disease activity is associated with frailty both in cross‐section and longitudinally. Methods Participants within the Veterans Affairs Rheumatoid Arthritis (VARA) registry enrolled from 2003 to 2022 were included.
Courtney N. Loecker +14 more
wiley +1 more source
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos +2 more
wiley +1 more source
Unsupervised feature selection by means of external validity indices [PDF]
Feature selection for unsupervised data is a difficult task because a reference partition is not available to evaluate the relevance of the features. Recently, different proposals of methods for consensus clustering have used external validity indices to
Béjar Alonso, Javier
core +1 more source
Objective This study aims to investigate lifestyle‐related factors in patients with psoriatic arthritis (PsA) and their association with disease activity measurements. Methods This multicenter cohort included 938 patients who were newly diagnosed with PsA between 2013 and 2023.
Batoul Hojeij +11 more
wiley +1 more source
Implications of external validity for research on polycentric and complex adaptive systems [PDF]
Much recent research has examined the implications of policy analysis for complex adaptive social-ecological systems. System complexity comes from both the natural environment as well as complex institutional arrangements that humans use to manage and ...
Coleman, Eric A.
core

