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Hi everyone, and welcome

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to the second module of epidemiology two.

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What you'll see in this
module is going to be

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typical of the next few modules.

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We'll review some concepts
that we've learned previously

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and then we'll build on those
with more advanced material.

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In this module, you're going
to see epi study designs

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and build on what you've learned before

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with some more advanced
case control study designs.

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We'll take a deeper look at
matching in our epi studies

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and look at the importance of
age as a critical confounder.

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My message to you this week
is don't wait to get started.

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You have a chapter to
read in your textbook

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and you'll see that the
chapters are pretty long.

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I also want to make
note about your textbook

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before we go forward.

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I'll be honest with you
guys, it's pretty dry

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compared to the "Gordis
Epidemiology" textbook

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that we used for epi one.

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It is, however, the best
and only intermediate

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epi two textbook that's on the market,

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so I apologize for the dryness,

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but please do try to get as much

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out of reading it as you can.

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As in previous classes,
the lecture is a summary

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of what goes on in the chapters.

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And the lectures do not
hit on every detail,

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so reading through the
book is really important.

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The other thing that you have this week

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is an SPSS lab assignment,
and this also isn't short,

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so please do go ahead
and get started early.

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You'll see that there's
some additional information

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about SPSS, some videos to watch,

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and some additional
support should you need it

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for the SPSS assignment.

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The resources on this page
are designed for everyone

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regardless of your background with SPSS.

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Take some time to look
through the resources,

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watch the videos, and follow along

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in your own SPSS software
to make sure that

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you feel comfortable
with what is presented.

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Learning or advancing your knowledge

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of statistical software is really hard.

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It can be really frustrating until you get

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to that learning curve enough to

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feel comfortable using the software.

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There are two things that I found to be

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really helpful when learning
statistical software.

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The first is don't be
afraid to play around.

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Don't be afraid to click things,

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try things out, and see if
you can start to figure out

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what SPSS is actually
doing behind the scenes.

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The second thing that I found
useful is working with others,

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so I encourage you to work
with each other on these labs.

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Use Yellowdig as a forum so that

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you can get the most out of it.

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Feel free to post
screenshots of your output.

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Ask if others are getting similar results

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or verify that your understanding
of something makes sense.

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You can really learn
a lot from each other,

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and this discussion and collaboration

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is going to be really great
for your long-term retention

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of the material and learning.

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This mimics the real world,

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and asking colleagues
or the internet for help

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when you run into an analytic challenge.

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If you have questions,
please don't hesitate

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to get in touch and I'll
see you in the next module.

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Take care.