00:01
Question we need to say what type of methodology nicole should use so that she could indeed say that her exercise or not cause a lose of weight.
00:14
So basically we should have something here that when we want to have this kind of causation here what we should use is an experiment.
00:25
In this case for her specific problem, the experiment that she should have is what we call the randomized here, randomized experiment.
00:42
What this means randomize? this means that she should not like a mandate that her clients participate in this study.
00:51
She should get like volunteers here, somebody to volunteer to her study.
00:58
But she should control here for what we call lurking variables.
01:05
Any kind of variable that could influence her results.
01:09
What kind of variable could be? like she needs to control about age because depending on the age, like if you're too young, probably will not lose that much weight.
01:22
Or if you're too old is the same thing.
01:25
So basically should control, have everybody in the...
01:28
Study with like around the same age...