Can anyone help me how to gather relevant data to be use in analyizing using multiple regression analysis?

Question

what i mean is i need raw data for my statistics and i'm going to analyze that using multiple regression analysis. it's so hard to gather a gud raw data so if anyone knows where i can get the data please let me know. thanx

Answer 1

Your question is too vauge for any specific response, but here's a few tips:

1.  Brainstorm the variables you think may be influential on your result or response curve.  

2.  Err on the side of including more variables then excluding variables unless there is a limiting factor on measurement ($$, lab time, etc.)

3.  Make sure you have good, continuous data and can measure it as precisely and consistently as possible.  

4.  Spend 4 times as much time on planning your measurement/data collection as you think you need.  You will prevent re-work and both Type I and Type II errors.  

Good luck!

Answer 2

You start with the problem, and your hypothesis of what you will find.  Then you identify your dependent variable (the one that will move), and figure out 3-5 independent variables (the ones that will move the DV).  Each IV must be at least a bi-variate (have some variation, at least two data points).  Such as:  gender:  male or female, socio-economic status: low income, middle income, high income.