Question

[06.07]

Analyze the following statement.

Marcus notices that he runs faster in the mornings rather than the evenings.

Is the statement an example of correlation or causation?

Correlation because time of day doesn't cause a person to run faster or slower

Causation because Marcus has noticed this over several trials

No relationship because time of day has nothing to do with how fast a person runs

There is not enough information to make a conclusion

Answer 1

@hartnn

Answer 2

I do not know...sorry

I found this..
a March 2009 article published in the New York Times says that various studies by scientists have shown that athletes tend to perform better in workouts that occur between the hours of 4 and 8 PM, which is when body temperature and performance-relevant hormones are at optimal levels to support exertion. --- marcus is the opposite...lol

Answer 3

so apparently times of day do matter

Answer 4

I am leaning towards B....but I do not know if he used several trials to determine this or if he just used one trial. So it might also be D. You better ask hartnn.

Answer 5

@hartnn ...if you have time, can you take a peek at this

Answer 6

this one is indeed confusing :P

Answer 7

at first I didn't think times of day would matter, but then I found what I posted above. So I believe time of day does matter

Answer 8

I just do not know if Marcus tested this several times or not. So do you think it would be D ?

Answer 9

see, i am not sure, but i would pick co-relation

Answer 10

oh...so you do not think time of day matters ?

Answer 11

I mean : you don't think time of day causes a person to run faster or slower ?

Answer 12

what about this..
One of those studies, conducted in the Department of Kinesiology at the College of William and Mary in Virginia, concluded that, “the data demonstrated significant chronobiological oscillation in peak torque, average power, maximal work in a single repetition, and total work per set…these data suggest that maximal muscle performance does vary within the segment of the day when exercise typically occurs.

Answer 13

sorry kristinak....this one is tough. Sorry I could help much :(

Answer 14

oops...typo...sorry I couldn't help much

Answer 15

It's fine thanks

Answer 16

@satellite73 ...can you please take a look at this