Examlex
What is used to show time ordering on a communication diagram?
Experimental Research
A research method involving the manipulation of variables to establish cause-and-effect relationships in controlled conditions.
Cause And Effect
The relationship between events or things, where one is the result of the other or others.
Observational Research
A research method that involves studying subjects without manipulating the environment, often used to gather data in natural settings.
Piaget's Concept
A theory of cognitive development that outlines how children's ability to think progresses through several stages as they mature.
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