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lidiya [134]
3 years ago
10

Who was one of the first scientists to systematically study emotional expression, including the facial expressions and body lang

uage used to express different emotions?
Social Studies
1 answer:
lisov135 [29]3 years ago
5 0
It is Charles Darwin who is the first to systematically study emotional expression. He is known for his theory of evolution in biological science, but he had also made an important contribution in Psychology. Charles Darwin conducted an experiment on emotion, on how people recognize emotion in faces. He argues that all humans and even animals show emotion through similar behaviors. Examples are happiness, sadness, fear, anger, and disgust.
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Answer & Explanation :-

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- Dependent variable is the variable being effected by other variables. In this case, it is 'Hyperactivity in children'

- Independent variable(s) are the causal variables which effect the dependent variable. In this case, it is 'New Drug'

  • Data is collected through sampling method. Sample of children will be selected from entire population of children.
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- Null Hypothesis [H0] : New drug has no impact on children hyperactivity

- Alternate Hypothesis [H1] : New drug decreases children hyperactivity

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