Structural Equation Modeling (SEM) in R

After the awesome short (15-min) teaser talk on SEM at the 10/22 R meet up, Jeremy will do a full-hour talk on SEM. 

Let's do statistics backwards: Structural Equation Modeling in R

Structural equation modeling (SEM) is a powerful tool for testing complex hypotheses. In SEM we start with a model (represented in a path diagram) and test it on the data; rather than the more common starting with the data and developing a model. SEM requires that we do statistics backwards. But SEM allows us to think about models in different ways, and test complex hypotheses that cannot (easily) be tested using other methods. In this talk I'll attempt to explain why you should be as excited about SEM as I can be.  

Jeremy Miles is a quantitative psychologist at the RAND Corporation, where he analyzes data to try to solve problems in areas of health policy; some of the time, he is a professor of quantitative methods at the Pardee-RAND Graduate School. His most recent book is 'Discovering statistics using R', written with Andy Field and Zoe Field.

Timeline:

- 6:15pm pizza arrives and networking

- 7:00pm talks starts promptly

Please arrive by 6:55pm the latest.

Please RSVP as places are limited.

Venue: Adconion Media Group (3301 Exposition Blvd, Santa Monica). They will kindly provide pizza and drinks (big thanks to Mikhail and AMG for that and for providing the place).


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  • RN

    My final comments on SEM: I found this great quotation on this web page for a conference held in 2013 which has a lot of good pdfs on SEM for ecology: http://jarrettbyrnes.info/ubc_sem/

    "The skepticism regarding 'latent
    variables' among many statisticians can
    probably be attributed to the metaphysical
    status of hypothetical constructs. On the
    other hand ... the concept of a 'good
    statistician' is not real, but nevertheless
    useful …"
    - Skrondal and Rabe-Hesketh

    1 · February 10, 2014

  • RN

    wonderful and exciting, great stand-up comedy as well

    2 · February 7, 2014

    • Jeremy M.

      Thanks. I can never do another talk, as I've now told all my jokes.

      2 · February 7, 2014

    • Matti S

      Hey Jeremy, I would like to have you present at SCALE 12x in our Big Data Track on Sunday Feb 23 2014. Please let me know if you are interested. Thank You Matti

      February 7, 2014

  • Andrew D.

    I got as far as the 605 and the 60, and went home because of traffic. Sorry.

    February 7, 2014

  • Don R.

    Is there a live stream link for this event today? (If not, will a recording of it be available later, and/or slides?) thanks

    February 6, 2014

  • Jeff W.

    Jeremy Miles should bill himelf as "The Standup Statistician". He's funny, engaging, and brilliant.

    2 · February 6, 2014

    • Jeremy M.

      Thanks - I try to make it interesting, and as unlike "work" as I can.

      1 · February 7, 2014

  • David B.

    Thanks Jeremy!

    February 7, 2014

  • Jian Liang Z.

    Thanks for the rain, I was lucky to move up from the waiting list yesterday. The talk was fun and inspired.

    1 · February 7, 2014

  • Jeremy M.

    Here's a zip file, with data, R code, presentation and (I believe this is a first for the LA R User Group) a song!
    http://tinyurl.com/SEMinR

    4 · February 6, 2014

    • - Szilard Pafka -

      Thanks Jeremy for the talk and for posting the slides.

      February 7, 2014

  • Mikhail L.

    Thank you all for coming last night, thanks to Jeremy for a great talk. BTW: if anyone managed to leave a beanie and a baseball cap(http://i853.photobucket.com/albums/ab100/mlyukmanov/IMG_20140206_201946_zps29a98687.jpg), pls contact me.

    February 7, 2014

    • - Szilard Pafka -

      Thanks again Mikhail and Adconion for hosting and pizza :)

      February 7, 2014

  • Fenando Hoces de la G.

    Arghhhh! I don't know what I was thinking when I left the office on my bike. Soaking wet now and will have to miss it. Have fun!

    February 6, 2014

  • RN

    I take it that Jeremy will be using lavaan, the R package for SEM. Are there any other packages that might come up in the talk?

    February 5, 2014

    • Jeremy M.

      I'll be using lavaan, and I'll mention OpenMx and sem packages.

      February 6, 2014

  • June

    Have a work emergency that requires my attention. Hope someone else can enjoy this on my behalf. So sorry I will missing a wonderful lecture!

    February 6, 2014

  • Tim Triche, J.

    This sucks but I'm going to have to duck out of this one

    Sorry Jeremy!

    February 6, 2014

  • David R.

    I just managed to sprain my driving ankle. :facepalm: I hope that the talk is great, and that the new 100th person can go on such notice. Jeremy - thanks for putting other material online! At least I can get a sense of things!

    February 6, 2014

  • Matti S

    Everyone here is invited to come to SCALE 12x, So Cal Linux Expo, Feb 21, 22,[masked] at the LAX Hilton. We've setup a 50% off code for everyone in the group: LARUG ( it's a great deal, and the full pass includes most of the Friday events. )
    https://www.socallinuxexpo.org/scale12x

    February 4, 2014

    • Matti S

      Sorry, looks like I will not be able to make it. Please help pass the word and invite everyone to join us at SCALE 12x. It is a really good event, and with 50% off the full conference is only $35. Perhaps we can do a RUG Birds of a Feather at SCALE?

      February 5, 2014

  • Alex N.

    sounds awesome, super bummed have to work instead of going. at least someone else can take my place !!!

    February 5, 2014

  • William L.

    should people on the wait list come in?

    1 · January 26, 2014

  • Matti S

    How about doing this at SCALE 12x? ( Runs Fri-Sat-Sun Feb 21, 22,[masked] at the LAX Hilton ) https://www.socallinuxexpo.org/blog/scale-12x

    2 · November 20, 2013

  • Jeremy M.

    Some people have requested a little more background on SEM.

    Here's a paper that I wrote a few years ago that introduces some of the things that can be done with SEM: http://tinyurl.com/lsw2ooy (where I was the first person to use the word "shit" in The Psychologist).

    The Wikipedia article is not dreadful: http://en.wikipedia.org/wiki/Structural_equation_modeling

    Here's an example of the kind of thing I do with SEM: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820125/

    Here's another (which breaks the rules of path diagrams a little) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2871669/

    October 23, 2013

  • - Szilard Pafka -

    Jeremy thought there will be like 5-10 people interested and he can do it in the weekend at his house ;)

    October 23, 2013

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