Randbias
Randbias refers to a hypothetical bias that might affect the outcomes of experiments or analyses that rely on random assignment of subjects or data. While the ideal of random assignment is to create equivalent groups, Randbias suggests that in practice, the random process itself could, by chance, lead to systematic differences between the groups, thereby confounding the results. This could manifest in various ways, such as one group coincidentally having a higher proportion of individuals with a specific pre-existing characteristic or being exposed to slightly different environmental factors during the random allocation process.
The concept of Randbias is distinct from selection bias, which occurs when the method of selecting participants
While Randbias is a theoretical concern, its practical impact is often debated. In many well-designed studies