Jean Piaget was a Swiss psychologist that gave the theory of cognitive development. According to him, the girl dumping Juan is an example of hypothesis testing.
Hypothesis testing is a theory that uses the facts and data from the collected sample and surveys to conclude the distribution and probability of the population.
It is based on tentative assumptions that are thought of as true based on some pre-assumed parameters, and hence, Juan assumed that Chelsea dumped him for not calling.
Therefore, this is an example of hypothesis testing.
Learn more about Piaget's theory here:
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