Can someone help with this statistics Question?!

Question

anonymous · Answer

attachment

amistre64 · Answer

.... ive never seen those terms used :/

anonymous · Answer

I KNOW! it makes no sense!! lol

amistre64 · Answer

http://stattrek.com/statistics/dictionary.aspx?definition=lurking%20variable

amistre64 · Answer

they have a confounding optionin the drop down as well

amistre64 · Answer

if you have a text on them material, it would prolly be best to look up how it defines them as well

anonymous · Answer

I'm still not understanding this. http://stattrek.com/statistics/dictionary.aspx?definition=lurking+variable

anonymous · Answer

Lurking variables are either things that you haven't considered that might have an effect on what you're measuring, or are things you are considering that should not have an effect.

anonymous · Answer

Having control groups in an experiment can help reduce the effects of lurking variables. Confounding happens when the controls do not adequately eliminate alternate explanations. One is 'confounded' when they don't know how to properly explain something. See: http://stattrek.com/experiments/what-is-an-experiment.aspx (+1 to amistre for the stattrek link. It has been my primary source for statistics notes for years.)