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External validity captures the extent to which inferences drawn from a given study's sample apply to a broader population or other target populations. Social scientists frequently invoke external validity as an ideal, but they rarely attempt to make rigorous, credible external validity inferences.
Michael G Findley +2 more
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Improving the external validity of clinical trials: the case of multiple chronic conditions [PDF]
The U.S. Department of Health and Human Services vision and strategic framework on multiple chronic conditions (MCCs) incorporates recommendations designed to facilitate research that will improve our knowledge about interventions and systems that will ...
Martin Fortin, Susan Smith
doaj +5 more sources
Against external validity [PDF]
Francesco Guala once wrote that ‘The problem of extrapolation (or external validity as it is sometimes called) is a minor scandal in the philosophy of science’. This paper agrees with the statement, but for reasons different from Guala’s. The scandal is not, or not any longer, that the problem has been ignored in the philosophy of science.
Julian Reiss
exaly +4 more sources
Patients enrolled into pivotal randomized controlled trials (RCTs) may differ substantially from those treated in a real-world (RW) setting, which may result in a different benefit–risk profile. The aim of the study was to assess the external validity of
Ylenia Ingrasciotta +9 more
doaj +1 more source
Background Randomized clinical trials (RCTs) might not be representative of the real‐world population because of unreasonable exclusion criteria. We sought to determine which groups of patients are excluded from RCTs that included lipid‐lowering therapy.
Martina Aeschbacher‐Germann +9 more
doaj +1 more source
The relevance of studying proactive coping and proactive attitudes in early adulthood is determined by the fact that planning the future and predicting difficult situations are important skills for an adult. In theoretical terms, our study is based on R.
Anna A. Bekhter, Olesya A. Filatova
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Causal effect on a target population: A sensitivity analysis to handle missing covariates
Randomized controlled trials (RCTs) are often considered the gold standard for estimating causal effect, but they may lack external validity when the population eligible to the RCT is substantially different from the target population.
Colnet Bénédicte +3 more
doaj +1 more source
Assessing external validity [PDF]
In designing any causal study, steps must be taken to address both internal and external threats to its validity. Researchers tend to focus primarily on dealing with threats to internal validity. However, once they have conducted an internally valid analysis, that analysis yields an established set of findings for the specific case in question.
Hao Bo, Sebastian Galiani
openaire +1 more source
Methodological issues when using face prototypes: A case study on the Faceaurus dataset
Prototype faces, created by averaging faces from several individuals sharing a common characteristic (for example a certain personality trait), can be used for highly informative experimental designs in face research. Although the facial prototype method
Jeanne Bovet +2 more
doaj +1 more source
Subgroups in Late Adulthood Are Associated With Cognition and Wellbeing Later in Life
Objectives: In this study, we aim to discover whether there are valid subgroups in aging that are defined by modifiable factors and are determinant of clinically relevant outcomes regarding healthy aging.Method: Data from interviews were collected in the
Tulsi A. Radhoe +7 more
doaj +1 more source

