Levels of Evidence, Quality Assessment, and Risk of Bias: Evaluating the Internal Validity of Primary Research [PDF]
Frontiers in Veterinary Science, 2022 Clinical decisions in human and veterinary medicine should be based on the best available evidence. The results of primary research are an important component of that evidence base.
Jan M. Sargeant +2 more
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Target Validity: Bringing Treatment of External Validity in Line with Internal Validity [PDF]
Current Epidemiology Reports, 2020 Purpose of Review: "Target bias" is the difference between an estimate of association from a study sample and the causal effect in the target population of interest. It is the sum of internal and external bias. Given the extensive literature on internal validity, here, we review threats and methods to improve external validity. Recent Findings External
Catherine R Leško +2 more
exaly +5 more sources
Current Status of Animal-Assisted Interventions in Scientific Literature: A Critical Comment on Their Internal Validity [PDF]
Animals, 2020 Many meta-analyses and systematic reviews have tried to assess the efficacy of animal-assisted interventions (AAIs), reaching inconsistent conclusions.
Javier López-Cepero
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A comprehensive item bank of internal validity issues of relevance to in vitro toxicology studies [PDF]
Evidence-Based ToxicologyContext In vitro toxicology studies are increasingly being included as evidence in systematic reviews and chemical risk assessments. INVITES-IN, a tool for assessing the internal validity of in vitro studies, is currently under development.
Gunn E. Vist +22 more
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The internal validity of web-based studies
Empirical Musicology Review, 2008 Honing and Ladinig (2008) make the assertion that while the internal validity of web-based studies may be reduced, this is offset by an increase in external validity possible when experimenters can sample a wider range of participants and experimental ...
Philippe Lacherez
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The relationship between external and internal validity of randomized controlled trials: A sample of hypertension trials from China [PDF]
Contemporary Clinical Trials Communications, 2015 Objective: To explore the relationship between the external validity and the internal validity of hypertension RCTs conducted in China. Methods: Comprehensive literature searches were performed in Medline, Embase, Cochrane Central Register of Controlled ...
Xin Zhang +4 more
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An Internal Validity Index Based on Density-Involved Distance
IEEE Access, 2019 It is crucial to evaluate the quality of clustering results in cluster analysis. Although many cluster validity indices (CVIs) have been proposed in the literature, they have some limitations when dealing with non-spherical datasets.
Lianyu Hu, Caiming Zhong
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Frontiers in Cardiovascular Medicine, 2021 Sedentary behavior, particularly sitting, is ubiquitous in many contemporary societies. This is a major societal concern considering the evidence for a strong association between sitting behavior and cardiovascular disease morbidity and mortality ...
Lee Stoner +11 more
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Investigating the Factor Structure of iSkills™
Ask, 2022 This paper investigates the issue of internal validity in the context of complex assessments and constructs, focusing on Information and Communication Technology (ICT) literacy as measured by the iSkills assessment. Utilizing exploratory and confirmatory
Irvin R. Katz +2 more
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Psychometric properties of an instrument 2: structural validity, internal consistency, and cross-cultural validity/measurement invariance [PDF]
Korean Journal of Women Health Nursing, 2021 Structural validity, internal consistency, and cross-cultural validity/measurement invariance are psychometric properties of the internal structure of an instrument.
Eun-Hyun Lee
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