Investigators traditionally use randomized designs and corresponding analysis procedures to make causal inferences about the effects of interventions, assuming independence between an individual’s ...

Randomization and replication are two key principles of experimental design and sampling that can help you increase the validity of your results. Validity refers to how well your results reflect the ...

Single-case experimental designs (SCEDs) involve repeat measurements of the dependent variable under different experimental conditions within a single case, for example, a patient or a classroom 1.

Randomization is the process of assigning participants, treatments, or other elements of an experiment to different groups or conditions by chance, rather than by choice or other criteria. For example ...

While randomization is required by regulatory bodies, it is up to the sponsor on how to conduct it. Developing a clinical trial’s effective monitoring plan can be overwhelming. The FDA acknowledges ...