For this reason, the start of failure at the center of the disk is essential for the validity of a BT, i.e., is necessary if the test result is to correspond with the TS.
Unlike ACT-R's default vision module that was originally developed for top-down perception only, PAAV was designed to model a wide range of tasks, such as visual search and scene viewing, where pre-attentive bottom-up processes are essential for the validity of a model.
A low "lost to follow-up rate" will be essential for the validity of the study.
These observations are essential for establishing the validity of simulations of accelerated flows of high-gradient stratified and compressible media (Rayleigh–Taylor and Richtmyer Meshkov environments), particularly for reshock configurations in 2D and 3D.
Therefore, understanding the drug, design and drug release characteristics of the product is essential for assessing the validity, accuracy, and reliability of IVIVC of complex MR products obtained via directly modeling of in vivo data.
Thus, local information is essential for ensuring the validity of this map at local scales.
Qualitative patient feedback collected from the target group is essential for guaranteeing content validity of an item bank and is also recommended by the US Food and Drug Administration FDAA) in their PRO guidelines [ 8].
In circumstances where it is essential for the scientific validity of the study to include dates, such as dates of treatment (a direct identifier), data must be presented in such a way that is unlikely to affect statistical analyses but preserves anonymity.
Nevertheless, although blinding is essential for a high internal validity, it should be warily considered in a pragmatic trial because it decreases external validity.
Issues relating to external validity, essential for estimating potential population impact [ 15], are not investigated.
