This isnt much of a question, i need advice. my little sister was punched in the face today after she was at her friends house. shes 9 and she says a boy punched her. i dont know if i should find this kid or if i should just leave it alone, if you have advice i could use rn that would be nice!

Act off of how your sister reacted to the situation. Did she cry? Did she want to punch him back? Figure out what emotion she was feeling whether its the "lets get him back" or the "comfort me i'm not feeling good" kind of thing.

Explanation:

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

answer; the above statement is (true);