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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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 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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Target validity: Bringing treatment of external validity in line with internal validity. [PDF]
Curr Epidemiol Rep, 2020 Lesko CR +3 more
europepmc +2 more sources
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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Factors related to retention in a longitudinal study of infants at familial risk for autism
JCPP Advances, 2023 Background Reporting retention data is critical to determining the soundness of a study's conclusions (internal validity) and broader generalizability (external validity).
Sally Ozonoff +4 more
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On the Feasibility of Extending Social Experiments to Wider Applications
Journal of MultiDisciplinary Evaluation, 2016 Background: When deciding how to allocate limited funds for social programs, policymakers and program managers increasingly ask for evidence of effectiveness based on studies that rely on solid methodology, providing credible scientific evidence.
Stephen H. Bell, Laura R. Peck
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