• Two of my favorite topics: Privacy and Twitter.

  • Rankings as of 11:01am on 3/5/2012.  Sagarin Ratings for games though 3/4/2012.

    Previous rankings are here.

    Florida falls the farthest this week, dropping 6 spots and landing at number 25 after losing both of their games this week making them losers of three straight (at Georgia, at Vanderbilt, and Kentucky).  In the top 10, Michigan State falls three spots to number 7 after losing back to back games to Indiana and Ohio State this week.

    Moving in the other direction were teams like Kansas, North Carolina, and Ohio State who each have a win over a top ten team in the last ten days (Missouri, Duke, and Michigan State, respectively).  The team making the biggest move in the top 25 this week is Memphis.  Who jumps up 6 spots and into the top 25 at number 23.  They picked up two big Conference USA wins this week over the 3rd and 4th place teams UCF and Tulsa.

    Interesting note: My rankings (The SITW) and the AP rankings have the exact same top 9 teams, but in a different order.

    I also think it’s interesting that the Mountain West has two teams in my top 25 and the AP top 25, but neither of those teams is actually in first place in their conference.  New Mexico lead the MWC.

    Breakdown by conference: 2, 4, 5, 3, 0, 2, 2, 2, 5

    ACC Big East Big Ten Big 12 Pac 12 SEC MWC MVC Other

    Team Rank Change Record AP Sagarin
    Syracuse 1 – 30-1  2 5
    Kentucky 2 – 30-1  1 1
    Duke 3 – 26-5  6 10
    Kansas 4 ↑1 26-5  3 3
    North Carolina 5 ↑2 27-4  4 4
    Ohio St. 6 ↑2 25-6  7 2
    Michigan St. 7 ↓3 24-7  8 6
    Marquette 8 ↓2 25-6  9 13
    Missouri 9 ↑1 27-4  5 7
    Baylor 10 ↓1 25-6  12 12
    Indiana 11 ↑2 24-7  15 9
    Wichita St. 12 ↓1 27-4  16 11
    Wisconsin 13 ↑2 23-8  14 8
    Michigan 14 ↑3 23-8  10 20
    Creighton 15 ↓1 28-5  19 24
    Georgetown 16 ↓4 22-7  13 14
    Murray St. 17 ↑1 30-1  11 40
    Temple 18 ↑3 24-6  21 34
    Louisville 19 ↓3 22-9  27  22
    Gonzaga 20 – 25-5  24 31
    St. Mary’s-CA 21 ↑1 26-5  26 35
    San Diego St.  22 ↑2 24-6  18 45
    Memphis 23 ↑6 23-8  31 15
    UNLV 24 ↓1 25-7  20 21
    Florida 25 ↓6 22-9  22 16

    26-35: Florida St., Vanderbilt, Saint Louis, New Mexico, Virginia, Alabama, Purdue, Iowa State, Cincinnati, Southern Miss

    BCS: My offer still stands…….if you want to contact me you can send me a tweet @StatsInTheWild.

    Cheers.

  • Mark Leary's avatarSPSP

    The 2012 election process is in full swing, but almost no one seems happy about it.  When pollsters recently asked Americans about the election, 7 out of 10 said that they couldn’t wait for it to be over.  In part, the electorate’s malaise stems from the fact that none of the G.O.P.’s candidates are generating much enthusiasm from Republican voters, and President Obama’s approval rating continues to hover at less than 50%.  People aren’t excited about their options, and as the election process grinds on many voters may be thinking that no matter who wins the presidency in November, he (or she) will not be the sort of leader that we really want.

    But exactly what kind of leader is that? What do people look for when picking a president?

    Everyone holds a set of expectations, assumptions, and beliefs about what a “good” leader is like.  Social and organizational psychologists…

    View original post 826 more words

  • I don’t really know what to say about this.  It appears to be a band comprised of statistics graduate students at North Carolina State who sing about statistics to the tune of popular songs.  I’m really, truly speechless.

    Here are the lyrics:

    The Fifth Moment’s performance at the 2012 International Dinner! We are the original NCSU Graduate Statistics band! Follow us on Twitter, @TheFifthMoment. Lyrics below:

    Vocals / Keyboard: Bradley Turnbull and Kristin Linn
    Lead Guitar: Sidd Roy
    Rhythm Guitar: Joe Usset
    Bass : Kyle White

    Lyrics by Kristin Linn.

    Original: Super Bass by Nicki Minaj and Baby by Justin Bieber
    (We of course do not own any part of this song hybrid – thanks to Nicki Minaj and Justin Bieber for creating the parts.)

    This one is for the boys with the distributions
    on their parameters, they be prior choosin’
    and over model space, they be samplin’ up
    Markov chains with reversible jump.

    And he cool, got tools, he might have a rule
    that minimizes risk and when I see him at school,
    I trip, I flip, wanna kiss him on the lip
    ’cause with a Bayes factor, he’s so freakin’ hip.

    Conjugate or not not, do you think I’m hot hot?
    Based on my posterior, do I have a shot? Oh!
    You’re the kinda guy I was lookin’ for
    ’cause your unknowns are random, yo.

    I said, excuse me, you’re a heck of a guy,
    I mean, my my my my, MCMC is fly, I mean,
    You’re not shy ’round empirical types,
    and your estimates perform like a frequentist’s might, oh!

    Yes I did, yes I did.
    I need an introduction cause I aint Sidd
    I am Kristin Linn, I love statistics, I take limits.

    Multiply my likelihood by your prior.
    Be my conjugate and I’ll take you higher.
    Don’t you love those bay bay bay bay bay bay bay bay Bayesians, super Bayes,
    bay bay bay bay bay bay bay bay Bayesians, super Bayes.

    You have an unknown
    you want to find.
    Give it a prior,
    and multiply by
    the likelihood
    of your data.
    Ignore that constant denominator.

    Now you have it,
    a posterior.
    How will you use it?
    The choice is yours.
    Forget your p-values tonight.
    I’m 95% sure you’ll be alright!

    Bayes rule it will set you free.
    No more p-values and finally,
    don’t need that crazy closed form density.
    Sample from it using MCMC, yeah

    If objective is the way to go,
    under transformation one can show,
    there’s a prior invariant and so,
    thank you Jeffreys, you are my hero, oh

    When I was 22, I had my first love.
    His name was Bayes, no it wasn’t just a phase,
    and we used to stay up all night using WinBUGS.
    Sampling with MCMC, oh I was star struck.
    He woke me up daily, don’t need no Starbucks!
    We’d go on random walks,
    diagnose all our problems of convergence with
    autocorrelation plots.
    He was really good at minimizing his risk.
    He knew he had me dazing
    cause he was so amazing.
    Freq 3:16 is fading
    ’cause now I keep on saying…

    Bayes rule it will set you free.
    No more p-values and finally,
    don’t need that crazy closed form density.
    Sample from it using MCMC, yeah

    Bayesians ’round the world agree
    both objective and subjectively.
    it makes sense to update prior beliefs.
    Bayes I love you, you’re the one for me, me.

    Cheers.

  • The title of this post is supposed to be HaRRy PotteR, but unfortunately the blog style capitalizes all of the letters

    A very brief introduction to R….in terms of harry potter. 

    Cheers.

  • An interesting article by Charles Stangor: “Rethinking my Science”

    And a quote from it:

    First is the paper by Henrich, Heine, and Norenzayan (2010) on the use of WEIRD samples.  These authors argue that our usual college student samples (White, Educated, Intelligent, Rich, and Democratic) are just terrible – that we cannot expect them to generalize very far, and that we desperately need to expand them.

    I was trained, and have always trained my students, that “since we can’t get a representative sample of the population of interest (everyone), then we might as well study college students as they are convenient.”  This belief was so dear to me that I fully expected to find that the many respected scientists who responded to the target paper would buy into this logic – it just seems so reasonable!   But with some exceptions (e.g. Gaertner, Sedikides, & Brown, 2010), they did not.  It appears that many – even most – scientists agree that samples used by social psychologists are flawed and that our conclusions are therefore invalid.

    Cheers.

  • Rankings as of 11:16am on 2/27/2012.  Sagarin Ratings for games though 2/26/2012.

    Previous rankings are here.

    Breakdown by conference: 2, 4, 5, 3, 0, 3, 2, 2, 4

    ACC Big East Big Ten Big 12 Pac 12 SEC MWC MVC Other

    Team Rank Change Record AP Sagarin
    Syracuse 1 – 29-1  2 5
    Kentucky 2 – 28-1  1 1
    Duke 3 ↑1 25-4  4 9
    Michigan St. 4 ↑1 24-5  5 3
    Kansas 5 ↓2 24-5  3 4
    Marquette 6 ↑2 24-5  8 13
    North Carolina 7 ↑2 25-4  6 6
    Ohio St. 8 ↓2 23-6  10 2
    Baylor 9 ↑2 23-5  9 12
    Missouri 10 ↓7 25-4  7 7
    Wichita St. 11 – 25-4  15 10
    Georgetown 12 – 20-6  11 14
    Indiana 13 ↑3 22-7  18  11
    Creighton 14 ↑3 25-5  25  30
    Wisconsin 15 ↓1 21-8  14 8
    Louisville 16 ↓3 22-7  19 19
    Michigan 17 ↓2 20-8  13 24
    Murray St. 18 ↑1 25-1  12 43
    Florida 19 ↓1 22-7  16 15
    Gonzaga 20 ↑3 23-5  26 31
    Temple 21 ↓1 22-6  23 34
    St. Mary’s-CA 22 ↑5 23-5  28 36
    UNLV 23 ↑5 22-6  17 20
    San Diego St. 24 ↑8 20-6  21 49
    Vanderbilt 25 ↓1 20-9  30 26

    26-35:Virginia, Alabama, Purdue, Memphis, Southern Miss, Iowa State, Notre Dame, Florida State, New Mexico, California

    BCS: My offer still stands…….if you want to contact me you can send me a tweet @StatsInTheWild.

    Cheers.