Read Pablo’s draft of the opening paragraph of his latest short story: Edgar can't wait to play in the championship soccer tournament. He and his team have fought hard to make it to this point and have been rewarded with their first chance to be the top team.

His teacher tells him he needs to add a bit more context. What does this mean Pablo needs to do?

A.
Add another character
B.
Write a conclusion to the story
C.
Include details about the setting
D.
Make sure he has the who, what, where, when, and why

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.        

can you explain a little further maybe give multiple choice? ?

probably 3 since archeologists and historians don’t understand there writing.

answer; adoption agencies tend to place separated twins in similar homes;