Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Supported by

How do I input my informed priors for regression?

Mostly new to Bayesian approach and totally new to JASP. Trying to leverage Bayes regression (or ANOVA) to tighten up the CI (from my in-market test) into a "credible interval" for parameter estimation. I don't conceptually have a null here, I just want an interval around my estimation of sales lift from a test treatment.

Frequentist regression/anova is:

sales = f((test vs control market (1 or 0), post vs pre time period (1 or 0), test/post interaction (1 or 0)).

The test/post interaction is my treatment and what I am interested in. I have a solid prior based on previous analysis.

What confuses me is that I would expect to somewhere input my prior distribution (presumably via a mean estimate and standard deviation), but I don't see anywhere to do that. JASP just seems to default to an uninformed prior.

Any help getting in the right direction greatly appreciated!

Comments

  • Hi Scribe42,

    The priors can be set under "Advanced options" (linear regression) or "additional options" (ANOVA). The default options are not uninformed in the sense that they are not uniform, but they are fairly spread out and centered on 0. Adding more informed priors for regression/ANOVA is a worthwhile endeavor but things quickly get complicated. Zoltan Dienes has worked a lot with these kinds of problems - -I'd encourage you to check out his work!

    Cheers,

    E.J.

  • Appreciate the response!

    As mentioned I'm fairly new to Bayes, but if I can't enter an informed prior I'm unclear on what the benefit of Bayesian analysis is to begin with. Apparently there's some analytical benefit to making the null hypothesis the prior, though I don't see (yet) how there's any advantage to that. Perhaps there's a benefit to accepting or rejecting the null, but how can this help with parameter estimation?

  • Hi Scribe42,

    In many scenarios, the inference is very robust to the type of prior that is used. The primary Bayesian movement in statistics right now is "objective Bayes" and it uses general-purpose priors that meet specific desiderata. My own preference is to start with objective Bayes and then insert more specific information whenever it is available. Two recent papers that lists Bayesian advantages:

    1. https://osf.io/3tdh9/
    2. https://link.springer.com/article/10.3758/s13423-017-1343-3

    Cheers,

    E.J.

Sign In or Register to comment.

agen judi bola , sportbook, casino, togel, number game, singapore, tangkas, basket, slot, poker, dominoqq, agen bola. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 50.000 ,- bonus cashback hingga 10% , diskon togel hingga 66% bisa bermain di android dan IOS kapanpun dan dimana pun. poker , bandarq , aduq, domino qq , dominobet. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 10.000 ,- bonus turnover 0.5% dan bonus referral 20%. Bonus - bonus yang dihadirkan bisa terbilang cukup tinggi dan memuaskan, anda hanya perlu memasang pada situs yang memberikan bursa pasaran terbaik yaitu http://45.77.173.118/ Bola168. Situs penyedia segala jenis permainan poker online kini semakin banyak ditemukan di Internet, salah satunya TahunQQ merupakan situs Agen Judi Domino66 Dan BandarQ Terpercaya yang mampu memberikan banyak provit bagi bettornya. Permainan Yang Di Sediakan Dewi365 Juga sangat banyak Dan menarik dan Peluang untuk memenangkan Taruhan Judi online ini juga sangat mudah . Mainkan Segera Taruhan Sportbook anda bersama Agen Judi Bola Bersama Dewi365 Kemenangan Anda Berapa pun akan Terbayarkan. Tersedia 9 macam permainan seru yang bisa kamu mainkan hanya di dalam 1 ID saja. Permainan seru yang tersedia seperti Poker, Domino QQ Dan juga BandarQ Online. Semuanya tersedia lengkap hanya di ABGQQ. Situs ABGQQ sangat mudah dimenangkan, kamu juga akan mendapatkan mega bonus dan setiap pemain berhak mendapatkan cashback mingguan. ABGQQ juga telah diakui sebagai Bandar Domino Online yang menjamin sistem FAIR PLAY disetiap permainan yang bisa dimainkan dengan deposit minimal hanya Rp.25.000. DEWI365 adalah Bandar Judi Bola Terpercaya & resmi dan terpercaya di indonesia. Situs judi bola ini menyediakan fasilitas bagi anda untuk dapat bermain memainkan permainan judi bola. Didalam situs ini memiliki berbagai permainan taruhan bola terlengkap seperti Sbobet, yang membuat DEWI365 menjadi situs judi bola terbaik dan terpercaya di Indonesia. Tentunya sebagai situs yang bertugas sebagai Bandar Poker Online pastinya akan berusaha untuk menjaga semua informasi dan keamanan yang terdapat di POKERQQ13. Kotakqq adalah situs Judi Poker Online Terpercayayang menyediakan 9 jenis permainan sakong online, dominoqq, domino99, bandarq, bandar ceme, aduq, poker online, bandar poker, balak66, perang baccarat, dan capsa susun. Dengan minimal deposit withdraw 15.000 Anda sudah bisa memainkan semua permaina pkv games di situs kami. Jackpot besar,Win rate tinggi, Fair play, PKV Games