Howdy, Stranger!

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

Supported by

OSWeb - feedback problems using run if

edited April 2020 in OSWeb

Hi @sebastiaan! Hello everyone!

I'm currently trying out OpenSesame/OSWeb for the online implementation of my bachelor thesis study.

It has been working pretty good so far, but now I'm facing a problem with giving feedback via the run if technique as explained in your WCST tutorial ( I could not fully copy the method as I'm not working with a fully-factorial design here.

When I testrun the experiment in the browser, it doesn't seem to work.

The study presents images to the participants in random order and they have to choose to which category it belongs to using a keyboard response. It is crucial for my experiment to give feedback, whether the answer was correct or not.

I have (see image):

  • random images; looped [img] variable with filenames e.g. 'a1.jpg'
  • another [img_cat] variable; defining the category of each image
  • correct keyboard responses for each category (e.g. press 1 with correct response set to 1)
  • two sketchpads for correct/incorrect feedback using run if and [correct] = 0 and 1

Is there a way I could implement this in OSWeb?

Thank you very much in advance! I love the work you're doing with this amazing tool.

Cheers! :)



  • Hi Lenny,

    In principle, all the things that you are describing should be compatible OSWeb. But …

    When I testrun the experiment in the browser, it doesn't seem to work.

    … you have to be a lot more specific ;-) In what sense doesn't it work? Do you get a crash? If so, what is the error message? Is the behavior different from what you would expect?



  • edited April 2020

    Oh okay, I see. So the problem I'm having concerns the feedback after each trial.

    I would like to achieve the following implementation in OSWeb:

    1.) present a random image

    2.) let the participant press a key (1 to 7) to categorize the image

    3.) give feedback whether the response was right or wrong

    4.) repeat this procedure

    The feedback works perfectly fine in OpenSesame ... but as soon as I run it in the browser, the feedback always turns out as 'incorrect' (I assume this is because of the run if [correct] = 0 or 1 conjunction of the feedback sketchpads that somehow doesn't seem work).

    Any ideas what could do the trick here? :)




    Problem was simply a wrong equals operator.

    I tried out '===' instead of '==' in all my inline_javascripts and that does the trick!

    if (vars.correct_response === vars.response) {
    	vars.correct = 1
    	vars.trials_correct_val += 1
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 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