Informed Consent Demo Demo Experiment Run Experiment

Informed Consent Demo

Jaap Murre

Shows how to implement informed consent screens with downloadable PDFs and an ‘Accept’ checkbox.

If you are a registered user and signed in, you can here copy this script and its stimuli to your own account, where you can edit it and change it in any way you want.

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function getpdf(name) {
    return $$;  // Use obfuscated, time-limited S3 string

main.setfontsize(60); // 60% is better for lots of text to read
// Hint: You can do preloading of images and sounds here!
// Make sure you replace the text below with your department's text and fill in the details of the people involved
instruction("I willingly participate in this experiment. I confirm that I am at least 16 years old and I realize that I can stop participating at any moment during the task, without providing any reason. <br /><br />If the current experiment’s results will be used in scientific publications or are made public in any other manner, I know that my data will remain anonymous and cannot be linked to my identity. I know that the fully anonymized data from this experiment will be publicly available in an online repository.","Next","Informed Consent");
instruction("If I have any questions about the current experiment, I know that I can contact <your name> for further information.<br /><br />If I have any complaints about the task, I realize that I can send them to a member (<name of CE member>) of the Commissie Ethiek (Ethics Commission) at the Psychology Department of the University of Amsterdam (email: <CE member email>).","Next","Informed Consent");
var s, b1, b2, b3;
s = "You can download a PDF of the <a href='" + getpdf("informed_consent.pdf") + "' target='_blank'>Informed Consent</a> and " 
        + "<a href='" + getpdf("information_letter.pdf") + "' target='_blank'>Information Letter</a> for your own administration.";
    b1 = addblock("center",10,80,50).text("<h2>Informed Consent</h2><div>" + s + "</div>");   
    b2 = addblock("center",40,80,40).check("Check the box to indicate informed consent",[["Accept"]],"accept");
    b3 = addblock("center",70,30,10);


if (response["accept_Accept"] == "false") {
    text("You did not accept the informed consent and will not do the experiment.");
    window.location.href = ""; // Send subject somewhere else

// Hint: You can await the preloaded images and sounds here, which is probably completed anyway
text("Now the actual experiment would normally start.");

You can download the files as follows: Click on the file (link) and then right-click and choose Save as... from the menu. Some media files (e.g., sound) will have a download button for this purpose.