Results 1 to 10 of about 444,986 (247)
Some of the next articles are maybe not open access.

Threats to Internal Validity

2017
Michelle Newhart, Mildred L. Patten
openaire   +1 more source

Levels of Evidence, Quality Assessment, and Risk of Bias: Evaluating the Internal Validity of Primary Research [PDF]

open access: yesFrontiers 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
doaj   +4 more sources

Target Validity: Bringing Treatment of External Validity in Line with Internal Validity [PDF]

open access: yesCurrent 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

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