Examlex
Which of the following items that are commonly added during food preparation can be considered a preservative?
Causal Relationship
A connection between two events or states where one event is understood to be a direct result of the other.
Confounding Variable
An external variable that influences both the dependent and independent variables in a study, potentially skewing the results.
Observational Study
A study in which the researcher observes and records behavior or outcomes without manipulating variables.
Traditional Experiment
A research methodology involving the manipulation of variables to determine their effect on a particular outcome, usually featuring a control and experimental group.
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