In a study, the measurable conditions, events, characteristics, or behaviors that can be controlled or observed are called: variables.
A study can be defined as a process or technique through which a scientist (researcher) observes and measures the effect of a risk factors, diagnostic test, or treatments on a population.
In Science, a variable can be defined as the measurable conditions, events, characteristics, or behaviors that a scientist (researcher) can control or observe when performing a study.
In conclusion, the measurable conditions, events, characteristics, or behaviors of a living or non-living thing that can be controlled or observed in a study are typically called variables.
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