Question

A study of college freshmen found that students who watched TV for more than one hour each night gained 15 pounds in the first semester, compared to those who watched less than one hour. They concluded that there is an association between watching TV and weight gain in college freshmen. Which study design did they most likely use?

Answer 1

They most likely used an experiment with students randomly assigned to watch more than one hour or less than one hour of TV each night.

They most likely used an experiment with students randomly assigned to groups based on how much weight they gained.

They most likely used an observational study asking students to keep track of their TV habits and weight.

They most likely used an observational study asking students to keep track of their workout regimen and weight.

Answer 2

@Girls_Girder @aric200

Answer 3

no u dont love me anymore >:( :'(

Answer 4

i didnt say that! you said it!

Answer 5

</3 *sucks my tear up*

Answer 6

lol

Answer 7

Meanie! >:P

Answer 8

sorry!:(

Answer 9

http://www.google.com/imgres?imgurl=http://conservationmagazine.org/wordpress/wp-content/uploads/2013/11/blobfish.jpg&imgrefurl=http://conservationmagazine.org/2013/12/ugly-animal-preservation-society/&h=188&w=268&tbnid=txx64ce3DlwFFM:&zoom=1&tbnh=140&tbnw=199&usg=___u5QEtItJOgGZN1QAKP5LJMjUeI=&docid=A5TLTU33Z6rjhM&itg=1&sa=X&ei=0qe1U6LKMpOUqAbdmYGgCg&ved=0CJUBEPwdMAo

Answer 10

eww lmao <3

Answer 11

ahaha its so ugly that its cute!

Answer 12

I need help on this question!!

Answer 13

lol no -_- go touch it then tell me how u feel

Answer 14

hahaha i will!

Answer 15

i would but u see theres a lack of <3 so im gonna go finally finish this history

Answer 16

.-.