randomized
adj.adj. chosen or organized by chance rather than by a plan. In science, it describes a process where people or things are picked at random to make a test fair.
adj. arranged or selected in a random manner to ensure lack of bias. Often describes the methodology of clinical trials or statistical sampling where subjects have an equal chance of being assigned to any group.
The researchers used a randomized list of names for the study.
To ensure the results were fair, the participants were split into two randomized groups.
The gold standard for medical research is the double-blind randomized controlled trial, which minimizes the risk that either the patients or the doctors will influence the final outcome.
Often used as a participial adjective before a noun; frequently collocated with 'controlled trial' or 'selection'.
The study was random.The study was randomized.'Random' describes a lack of pattern, whereas 'randomized' specifically describes a deliberate process applied to a system to make it random.