Statistics Made Easy!

[Gegis]

Yeah, yeah i know this is really immature but i was bitter though making this entire ppt... i had to have my fun.

Let me go and explain Causation, Common Response and Confounding (yes these are all in my ppt that im showing tomorrow)

"Now this is the really simple stuff. Y happens because of X... Simple example I kick you in the balls and you fall over writhing in pain... X= I kick you in the balls. Y= You falling over writhing in pain. Thats called causation."

"Now common responce is different, X is thought to cause Y but Z actually affects X and Y. An example to this... You're writing over on the floor in pain and everyone thinks its because Jimmy pushed you over.... but in reality I kicked you in the balls when no one was looking and then told Jimmy to push you over. See? Common Responce."

"Then last we have Confounding. X and Z affect Y. Simple example to this too. Jimmy and I kick you in the balls, thus you are on the floor writhing in pain. Its not so much that I or Jimmy kicked you in the balls... but the fact that we both did... You kinda get it?"

[Oakleif]

A better example for the last case may be that you kicked him in the balls, while he was standing on ice, and he is now on the floor writhing in pain. Either your kick, or a nasty slip on the ice, could account for his current position and actions.

Of course, depending on who the "victim" is in your class, maybe the fact that Jimmy is a blackbelt in karate and just found out that someone else was dating his girlfriend may be a more satisfying second scenario...