Re: Simple regression

Posted by Rich Ulrich on May 08, 2016; 5:06am
URL: http://spssx-discussion.165.s1.nabble.com/Simple-regression-tp5732112p5732119.html

What you say does not make clear the "operational definition" (as they say)
of your two measures.  However,  "No Internet use at all" might strongly imply
"No Internet purchases." If that is the case, I think you need to find some Hypothesis
more interesting than one that has to be true.

For a test, it does not matter which you take as the IV and DV.  The Pearson r
has the same test as the regression in either direction.

If I wanted to say something useful and interesting about those data, I think
I would separate the Hours into "Zero"  and something like deciles; and plot
the increase in the fraction versus Hours. 
with some purchase.

--
Rich Ulrich

> Date: Sat, 7 May 2016 10:33:08 -0700

> From: [hidden email]
> Subject: Simple regression
> To: [hidden email]
>
> my research question is: "Can we say that the number of hours of Internet use
> increases with Internet purchase?" with the variables: - Use of Internet per
> week (Use in hours) - If respondent has already made a purchase on the
> Internet (1 = yes, 2 = no)
>
> Therefore, this statement told me that my dependant variable is number of
> hours of Internet use and my independant variable is Online purchase. But
> that seems me a little weird. How can I check if I don't have to reverse my
> IV and my DV ? (I use SPSS) Thank you
>
>

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