In an experiment, what term refers to the number of times the experiment is repeated?

The correct term that refers to the number of times an experiment is repeated is "trials." In scientific experiments, trials are essential for ensuring that the results obtained are reliable and can be generalized across various conditions. Each trial involves conducting the experiment under the same conditions and collecting data, which helps in assessing the consistency of the outcomes.

Repeating experiments through multiple trials allows scientists to average out random errors and variations that occur in any single trial, leading to more accurate and valid conclusions. The term "iterations," while related, usually refers to repeating a process in a broader context and is not specifically used for experimental repetitions. Similarly, while "evaluations" and "tests" can describe aspects of scientific processes, they do not specifically denote the act of repeating an experiment.