Answer:
Attention-deficit/hyperactivity disorder
Explanation:
ADHD is a neurological disorder. It occurs due to some deficiency in the brain. It is the chronic condition of a person. It occurs in childhood and can persist for a long duration or to adulthood. 
It is related to low self-esteem, troubled relationships and has difficulty in maintaining social, family and school relationships. There are, any type of treatment can be applicable for this disorder such as psychotherapy, play therapy, drugs, and counseling, etc. 
Dara was mostly diagnosed with a disorder called Attention-deficit/hyperactivity disorder. 
 
        
             
        
        
        
<span>The message transfer model of communication portrays human communication as the information is flowing in one direction or in a linear direction, that is, from sender to receiver. This type of communication can also be called transmission model. An example is when you send a text message to your friend. </span>
        
             
        
        
        
If the manipulation of the independent variable causes a change in the dependent variable, covariance is established.
 
        
             
        
        
        
Answer:
1. Experiment 2. idk. 3. Dependent Variable 4. idk. 5. Controlled Variable 6. Independent Variable 7. idk. 8. idk. 9. operation. 10. Evidence. 11. Hypothesis 12. idk. 13. Theory. 14. I'm not sure