enforcing time on task in a given screen

[kmul...@gmail.com]

Hello,

We are trying to implement a "minimum time on task" functionality in our CTAT example tracing tutor, where students have to spend a minimum length of time on a given  problem (e.g., by having the Done button become active or visible only after a certain amount of time has passed, and/or some related way). Is this possible and if so is there any documentation on how to implement it?

There is a related question on the discussion group: https://groups.google.com/g/ctat-users/c/lrxiQhyNjeo/m/PKvq1Y-VCQAJ but the reply does not include the answer...

Any advice would be appreciated - many thanks in advance.

Kasia Muldner

Carleton University, Canada

[Jonathan Sewall]

Here's some custom JavaScript that might help. It assumes that your CTAT Done button has id="done" and is initially hidden via the CSS style property "visibility: hidden;". The CTAT runtime code emits the "tutorInitialized" event when the tutor is ready for student actions. Using the functions createInterfaceActionMessage() and sendToInterface() as shown will result in the reveal event being logged to DataShop.  

        document.addEventListener("tutorInitialized",
            e => {
                let msBeforeDoneAppears = 30000;  // half a minute
                new Promise((resolve, reject) => {
                    let startTime=Date.now();
                    setTimeout(()=>resolve(startTime), msBeforeDoneAppears);
                }).then(startTime => {
                    console.log("revealing Done button, ms elapsed", Date.now()-startTime);
                    let msgBldr=new CTATTutoringServiceMessageBuilder();
                    CTAT.ToolTutor.sendToInterface(msgBldr.createInterfaceActionMessage(CTATGuid.guid(),new CTATSAI("done", "setVisible", "true"), "DATA"));
                });
                console.log("tutorInitialized?", e);
            }

        );

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[kmul...@gmail.com]

Wonderful - thank you very much for your help!

Kasia