[Jeremy]

You are not properly closing your newTrial and Template commands: you need to add two closing parentheses after line 56 of your file Phase 3.js, as hinted at by the message that appears when you move your cursor over the red cross signaling an error:

You can see short error messages about those issues in the text editor on your project’s page, if you move your cursor over the red X icons that appear to the left of the line numbers

Jeremy

[Jeremy]

Hello,

Yes, the servers still experience important delays in generating the results files. This is due to multiple factors. The attack monopolized the available resources, and many operations were put on hold, and some are still ongoing at present.

There also are new operations added to the queue every day, including, notably, requests to save important incoming data (sometimes of thousands of lines) which take priority over other operations, but also requests to generate results files, which also use up a good amount of memory.
I seem to notice several requests for results files within less than a second. Users of the farm who fail to get their results or get them very slowly should refrain from clicking multiple times on the Download button(s), of from refreshing the page repeatedly and requesting the results again. All the requests are being received, even if they take time: unfortunately, sending multiple requests will only slow down everything, and you will get your results with an even greater delay

Finally, possibly as a result of the original Ibex farm going down and of the recent attack, our database has now grown significantly. Because of the great amount of results lines in the database, accessing them takes a longer time (incidentally, this is why users receive notifications inviting them to regularly clear their results files from our servers)

Note that, as I am writing this message, the servers are not currently experience slowdowns, but you can expect slowdown episodes to occur again in the near future. I apologize for the inconvenience

Jeremy

[Jeremy]

Hello,

Thank you for your messages. We are aware of the situation. Our servers have been undergoing a DDoS flooding attack for the past few hours (which should be under control now), resulting in delayed processing of requests to save and generate results files. Those requests are currently lagging by approximately 1h30min: if one of your participants completed your study 1h30min ago, their results are being added to our database now. Participants who completed your study more recently will have their results added to our database within the next 1h30min, assuming delays do not accumulate: incoming data are still being processed and should be eventually saved in our database, but with important delays. Your participants may see a confirmation message that their results have been sent to the server, which means that they have been successfully queued for processing, however, the confirmation message does not indicate that the results have been added to our database yet

Please refrain from attempting to accessing your results for now, as each request (whether ultimately successful or not) is likely to incur additional memory load on our servers. You should be able to access your results again within the next 24h

We apologize for the inconvenience

Jeremy

[Jeremy]

Hi Elias,

You never print the TextInput element so it won’t appear on the page. Your script gets stuck on its wait command because, the element not being displayed on the page, you cannot press Enter to validate it.

I suspect that what you want is:

newTimer("allotted time", 6000).start()
,
newTextInput("feedback", "Enter your answer")
    .log()
    .lines(0)
    .size(400, 200)
    .print()
    .callback( getTimer("allotted time").stop() )
,
getTimer("allotted time").wait()
,
getText("word").remove()         // Take the word off the page
,
getTextInput("feedback")
    .remove()
    // .wait( getTextInput("feedback").test.text(/^.+[\r\n].+[\r\n].+$/) )
    .test.text( row.CorrectKey )
    .success( newText("Good job!").print() )
    .failure( newText("Wrong anwser!").print() )
,
newTimer(2000).start().wait()   // Wait 2s on the empty page

Jeremy

[Jeremy]

Hi,

Did you invite them to apply this solution? https://www.skillsgarage.net/kb/error-notallowederror-permission-denied/

Jeremy

[Jeremy]

Hi,

I was able to run (a copy of) your experiment on Safari on an iPhone, but I used the AddHost method and needed to add a Button and wait for a click on it before playing the Audio element. The images load fine, but because play crashes in the absence of a Button element, the script would never get to their print commands, which is why you didn’t see them

Another issue (at least with the AddHost method) is that you don’t have a file named 008vismeghvitkanin.wav: you file is named 008vismeghvitkanin.m4a (different extension—I didn’t check the actual audio format of the file)

Did you say you tried Chrome on your iPad too? Did it also block playback the same way?

Jeremy

[Jeremy]

Hi,

If the AddHost method works for everything but the Ipad, I would just go with it. It also means that the problem is not coming from where the files are retrieved from (given that they are successfully fetched on PC and Mac) so switching to using a zip file is unlikely to solve the Ipad issue.

Unfortunately I don’t have access to an Ipad myself, so I cannot test your project to troubleshoot this problem. What happens exactly on the Ipad? Do you get a preloading message, and when you start the trial, you have blank spaces instead of images, and no audio playback?

Re. the zip issue, you need to set the CORS properly. I see on your private server that you have a file named .htaccess.txt, but it needs to be named .htaccess, without the .txt extension (documentation page, step 1: “If your editor or operating system does not allow you to give this name to your file, name it htaccess.txt: you will rename it later after uploading it on your server”; step 4: “If you could not use this filename before (due to your operating system’s settings for instance) rename your file .htaccess.”)

The AWS console has an option to set up CORS for your S3 bucket, you need to allow GET requests for https://farm.pcibex.net

Jeremy

[Jeremy]

Hi,

I had to restart that farm some time ago, which is why the message disappeared. The farm at https://expt.pcibex.net/ is still scheduled to shut down in January 2022

Jeremy

[Jeremy]

If all you want to do is print a line of text, you should probably consider using a Text element (as in newText("Which one?").print())

If you haven’t read the PCIbex tutorial yet, I invite you to do so, it’ll give you a general idea of how to do this kind of things: https://doc.pcibex.net/basic-tutorial/

You can use the vertical command to display the options top-to-bottom: https://doc.pcibex.net/scale/#scale-vertical

Jeremy

[Jeremy]

Hi,

There is a not-yet-documented command on Scale elements called checkbox which turns the options into checkoxes that can all independently be on/off. By default each option will appear as a label next to a checkbox, but you can use CSS rules to customize the rendering. For example, if you want to only keep the text labels and have a dotted frame appear around the selected options, you can add this to global_main.css:

.PennController-Scale .option {
    margin: 1em;
}
.PennController-Scale .option input[type="checkbox"] {
    display: none;
}
.PennController-Scale .option input[type="checkbox"] + label {
    border: medium dotted transparent;
    padding: 0.25em;
}
.PennController-Scale .option input[type="checkbox"]:checked + label {
    border-color: black;
}

Example trial for reference:

newTrial(
    newScale("answer", "hello", "world")
        .checkbox()
        .print()
    ,
    newButton("Hello world")
        .print()
        .wait()
)

Jeremy

[Jeremy]

Hi Lorrainy,

1) The command selector.test.selected takes a reference to an element as its argument, not just the element’s name: https://doc.pcibex.net/selector/selector-test-selected/

Your code should be:

getSelector ("fraseT2")
    .test.selected( getText(row.acuracia) )
    .success( getVar("acuracia").set(1) ) 
    .failure( getVar("acuracia").set(0) )

(The next line .log("acuracia" , getVar("acuracia")) has no effect, since you already call log on that Selector element when you create it—you seem to be trying to use newTrial().log here, so you should move that line on the closing parenthesis of newTrial, which actually comes immediately on the next line in your code)

2) This rshuffle("tarefa2Alvo", "tarefa2Distratoras") outputs a sequence of shuffled trials labeled tarefa2Alvo or tarefa2Distratoras, and adding ,"transiTarefa2" just after it will simply run any trial labeled transiTarefa2 after that sequence

The function you are looking for is sepWith( separator , subsequence ), in your case you want to use sepWith( "tarefa2Distratoras" , rshuffle("tarefa2Alvo","tarefa2Distratoras") )

3) In your code you first attempt to add a Button element named botao8 before the Button element named botao7, but you reference that Button element (getButton("botao8")) before you even create it, so nothing effectively gets added to the left of botoa7. Even if it did, you print botao8 again just after that, so it will necessarily end up below botoa7, centered on the page

What you want is:

newButton("botao7", "Voltar")
    .callback(jump("pratica1"),end())
    .before( newButton("botao8", "Seguir") ) 
    .css("margin-left","1em")
    .print()
,
getButton("botao8").wait()

Jeremy

[Jeremy]

Dear Casey,

Some things you can do:

– if you don’t need the starting and ending time of your Header trials, add .noTrialLog() after the closing parenthesis of your Header(...) (before or after .log(...), it shouldn’t matter)

– more generally, if you don’t need the starting and ending time of some trial, add .noTrialLog() after the closing parenthesis of its corresponding newTrial(...) command

– if you are not interested in the participants’ answers to the practice trials, consider remove the .log(...) commands on the elements included in those trials (Key elements, TextInput elements, etc.)

– for your Textnput elements, you may want to consider using .log("final") so as to only get the “Final” line, and not the “first” and “validate” ones

– you may or may not want to delete some of the .log commands on your Key elements, depending on how crucial it is for response time calculations to have lines reporting those keypresses in your results file

Most importantly, make sure to take one or several testruns after editing your project to verify the integrity of the results files it produces, and apply the analyses you would normally apply so you’re sure you’re not missing any crucial bit of information

Jeremy

[Jeremy]

Hi Elias,

As you can see in the Errors tab of the Debug window, your column is named CorrectKey and not CorrectKey (note the space character at the beginning)

You should have a wait command before your test.text, because otherwise the script will rush through the lines even before the participant has had time to type anything in the box, so the test will necessarily fail (because the box is initially empty). Also note that the CorrectKey cells in your CSV table that do have some text in them all start with a space character, and the third one additionally ends with a space characters: those matter, and unless your participant types space characters in the box at the exact same place, the test will fail too; you probably want to remove those space characters from the cells

Once you fix those issues, you should get something functional and close to what you want

Jeremy

[Jeremy]

See this message

[Jeremy]

Hi Juliana,

Your code seems fine, as far as I can tell (the lines PennController.SendResults won’t have any effect because there’s no () but that doesn’t matter since you have SendResults() directly in your Sequence)

Do you know if the participants took your experiment at a specific time? With a specific browser? From a specific region?

Also, how many lines do you have in your results file? The PCIbex Farm will stop serving data after 100K lines of results, so if you have more than that you will need to collect your results file in multiple times

Jeremy

[Author]

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