Question

...

Answer 1

I'd rather think stress increases physical illness

Answer 2

You didn't get the dependent and independent variables wrong the way you wrote the hypothesis.

But usually illness is caused by stress rather than stress caused by illness.
But it is possible

Answer 3

the dependent variable is dependent of the independent variable :)

Answer 4

you can change the independent variable.

Answer 5

that article is correct :)

Answer 6

when you are stressed, you are more vulnerable to diseases

Answer 7

I'd make stress the independent variable and illness the dependent variable.

Answer 8

It increases the chance of getting a disease or could increase the symptoms

Answer 9

and yea when you turn around the hypothesis :)

Answer 10

but both ways are possible :)

Answer 11

haha you're welcome :)