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<v ->Hi y'all, and welcome to module seven.</v>

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We are about halfway through the content of EPI2

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so congrats for making it this far.

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In the last module, we reintroduce confounding

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and a lot of what you saw in that module

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should have felt familiar from EPI1.

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In this module, we will build on that discussion

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and start talking about the ways

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that we control for confounding.

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We started this in EPI1 when we talked about stratification.

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And if you remember,

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we calculated stratum specific measures of risk

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and then compared those

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to understand if confounding was occurring.

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In this module, we extend that

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to talk about controlling for confounding

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using multiple linear regression.

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This is an advanced statistical technique

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that allows you to control

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for multiple confounders simultaneously.

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To get to multiple linear regression,

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we first need to learn about

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simple linear regression and correlation,

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which is where this module starts.

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There's a lot of information this week,

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lots to read, lots to watch, and lots to absorb.

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So please give yourself plenty of time for this module.

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This is not one that you'll wanna wait till the last minute

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to get started on.

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You'll also be learning how to apply these techniques,

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possibly for the first time in SPSS.

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So again, give yourself plenty of time to learn

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and please reach out with questions.

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Work with each other on Yellowdig,

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tag me in a post or send me an email if you get stuck.

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Take care and I'll see you next week.