Answer:
Experimental Research Design 
Explanation:
Experimental Research Design is a scientific research design in which observations are examined under controlled conditions. It implies examining effect of independent variable on dependent variable, where independent variable is manipulated through interventional treatment & those interventions' effect on dependent variable is observed. 
'Assessment whether classical music increases child's creativity' is Experimental Research Design. As : Independent Variable - classical music is provided & not provided to two groups (respectively) in controlled environment, and its impact on Dependent Variable - Creativity test ; is observed. 
 
        
             
        
        
        
The theory of Psychodynamic is the one that emphasized the importance of unconscious forces.
<h3>What is 
Psychoanalysis?</h3>
Psychoanalysis refers to a set of psychological theories and therapeutic techniques whose origin is from Sigmund Freud's work.
One of Sigmund Freud theory which is called Psychoanalysis is one that emphasizes the importance of unconscious motives and internal conflicts in determining human behavior.
Hence, the theory of Psychodynamic is the one that emphasized the importance of unconscious forces.
Therefore, the Option D is correct.
Read more about Psychodynamic
<em>brainly.com/question/17147899</em>
 
        
             
        
        
        
Rachel Carson was one of te best to care about the environment thanks to silent spring she change the world think
        
             
        
        
        
Anthony garcia 
I found on google :)
        
             
        
        
        
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