One study found that the correlation between cell phone use and depression is r

Question

One study found that the correlation between cell phone use and depression is r = +.30. Which of the following statements is true?

a

The correlation has a medium effect size.

b

Cell phone use causes depression.

c

There is no relationship between cell phone use and depression.

d

As cell phone use increases, depression decreases.

a

The correlation has a medium effect size.

b

Cell phone use causes depression.

c

There is no relationship between cell phone use and depression.

d

As cell phone use increases, depression decreases.

Explanation / Answer

Option A and B is true

since r=+0.3

the correlation has a medium effect size

and cell phone use causes depression

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