As an opportunity to optimize external validity, we introduce a design in which the potential of pharmacological conditioning can be pretested in the laboratory.
Bootstrapping and jack-knife methods optimize predictive validity rather than goodness-of-fit.
To optimize external validity, study-related changes of usual general practice procedures are minimized.
To avoid social desirability and optimize measurement validity, we will guarantee full confidentiality (anonymity) to our participants (e.g., [ 43]).
Also, the length of the recall period was such as to optimize the validity of this variable.
Furthermore, the distinction between "Normal control" and "Possible control" is made to optimize the validity of the interpretations of data these brains yield.
Large, experienced labs, such as the one at the National Center for Environmental Health have the skills, resources and quality control systems to optimize the validity of the results.
Furthermore, we administered antihelminthic treatment before beginning the study to optimize the validity of the C-RID test and the intervention.
First, a principal component analysis using a varimax rotation was performed to eliminate cross-loading items and to optimize scale validity and reliability.
Quality control measures, including monitoring human DNA loads using ERV3 as a marker for epithelial cell components in samples should be undertaken to optimize the validity of real-time PCR results for respiratory virus investigations in community-based studies.
