• Online Experiment
  • 1 Overview
  • 2 Initial Setup
    • 2.1 Building: setting up PsychoPy
    • 2.2 Hosting: setting up Pavlovia
    • 2.3 Consent: setting up consent form through survey website (Qualtrics, Google Form).
    • 2.4 Recruitment: setting up recruitment websites (URPP, Prolific)
  • 3 Building: PsychoPy Builder Interface
    • 3.1 Building the Posner Cuing Task experiment
      • 3.1.1 Excel
      • 3.1.2 Builder
      • 3.1.3 Linking Excel to Builder using a loop
    • 3.2 Adding Practice Trials
    • 3.3 Adding instructions, transition and goodbye screen
      • 3.3.1 Instruction screen
      • 3.3.2 Transition screen
      • 3.3.3 Goodbye screen
  • 4 Hosting: Pavlovia
    • 4.1 Pushing the Posner Cuing Task online
  • 5 Consent: Implementing consent form and demographics
    • 5.1 Adding consent form through Qualtrics
    • 5.2 Adding consent form through PsychoPy
    • 5.3 Adding consent form through Google Forms
  • 6 Recruitment: recruiting participants and collecting data online
    • 6.1 Recruiting from SONA: Undergraduate Research Participant Pool URPP
      • 6.1.1 URPP –> Qualtrics –> Pavlovia –> URPP: Automatic Process
      • 6.1.2 URPP –> Pavlovia –> URPP: Automatic Process
    • 6.2 Recruiting from Prolific
      • 6.2.1 Prolific –> Qualtrics –> Pavlovia –> Prolific: Automatic Process
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Creating Online Experiments

Chapter 5 Consent: Implementing consent form and demographics

Below is the standard York University consent form template. We will be implementing this into our experiment today.

Informed Consent Form – Name of Study

Study name: Include the study name.

Purpose of the research: Include a statement about the purpose of the research. Include a statement indicating how the research will be conducted, presented and reported.

What you will be asked to do in the research: Include a statement regarding the role and/or responsibilities of the research participants. Include a statement regarding the estimated time commitment for the participation. If inducements will be offered, indicate them here.

Risks and discomforts: Include a statement regarding any real or perceived risks or potential discomfort that may result from participation in the research. If there is a possibility of harm or discomfort it must be described and the mitigation methods must be indicated.

Benefits of the research and benefits to you: Include a statement regarding any benefits of the research as well as benefits to the research participants.

Voluntary participation: Include the following required text: “Your participation in the research is completely voluntary and that participants may choose to stop participating at any time. Indicate that a participant’s decision not to continue participating will not influence their relationship or the nature of their relationship with researchers or with staff of York University either now or in the future.”

Withdrawal from the study: Include the following required text: “You may stop participating in the study at any time, for any reason, if you so decide. Your decision to stop participating, or to refuse to answer particular questions, will not affect your relationship with the researchers, York University, or any other group associated with this project. In the event that you withdraw from the study, all associated data collected will be immediately destroyed wherever possible.” If you are offering inducements, the following text is also required: “If you decide to stop participating, you will still be eligible to receive the promised pay for agreeing to be in the project“.

Confidentiality: Indicate whether or not the interview documentation/recording of the participant will be associated with identifying information. Indicate how the data will be collected (e.g. handwritten notes, video/audio tapes, digital device, etc.). Indicate how the data will be stored, who will have access to it, and that it will be stored securely. Indicate how long the data will be stored and whether or not it will be destroyed after the study, and how it will be destroyed. If the data will not be destroyed, indicate where and how it will be archived. Include the following required text: “Confidentiality will be provided to the fullest extent possible by law.”

Questions about the research? Indicate that if a research participant has questions about the research in general or their role in the study that they should contact the researcher or their supervisor. Provide the supervisor’s name and telephone number and/or email address. Indicate that the graduate program office may also be contacted. Provide the contact information for the graduate program office. Include the following required text: “This research has been reviewed and approved by the Human Participants Review Sub-Committee, York University’s Ethics Review Board and conforms to the standards of the Canadian Tri-Council Research Ethics guidelines. If you have any questions about this process, or about your rights as a participant in the study, your may contact the Senior Manager and Policy Advisor for the Office of Research Ethics, 5th Floor, York Research Tower, York University, telephone 416-736-5914 or e-mail ore@yorku.ca”

Legal Rights and Signatures: By checking the box below you consent to participate in the research project entitled: –name of project– conducted by –name of investigator–, and indicate that you have understood the nature of this project and wish to participate. You also approve that the data obtained in the experiment might be uploaded to an open external repository to promote collaborative scientific efforts. The data will be anonymized and your identity will not be revealed. You are not waiving any of your legal rights by indicating consent.

5.1 Adding consent form through Qualtrics

Sign into Qualtrics, Create a new project –> Survey

  1. The first question will set up the participant to input their unique identification number (Participant ID). For instance, participants coming from SONA would put in their URPP code. This is important to annonymously keep track of participants and their data.
identification code, Qualtrics

Figure 5.1: identification code, Qualtrics

  1. The next question will be the consent form. This question should be in a multiple choice format with only one choice, and forced response requirement. Setting up this way requires the participant to actively interact with the consent form (click to consent) in order to move to the experiment.
consent form, Qualtrics

Figure 5.2: consent form, Qualtrics

The next two questions are there to collect demographic informaiton, so they are optional.

  1. Collecting age information
    age information, Qualtrics

    Figure 5.3: age information, Qualtrics

  2. Collecting gender information
    gender information, Qualtrics

    Figure 5.4: gender information, Qualtrics

At the end of the survey, we want to redirect the participant to the experiment. Select End of Survey –> Redirect to URL: paste the link of your experiment in the box below (will be edited in Chapter 5 for automatic crediting).

end of survey, Qualtrics

Figure 5.5: end of survey, Qualtrics

Pro: automatic crediting, clean presentation.

Con: paid through institutional license available to full time faculty only

Example of consent form done through Qualtrics

5.2 Adding consent form through PsychoPy

Fitting large bundles of text into PsychoPy can get very messy. The best way to do it is to take a screenshot of the consent form (consent_form.png) and scale the image to fit the screen. Then we can surround it with text on the top and bottom to ask them to read the consent, press ‘y’ to consent, or press ‘escape’ key to exit out of screen.

consent form, PsychoPy

Figure 5.6: consent form, PsychoPy

We’ll put a text component on the top of the consent form asking participants to review the form. The y position is adjusted to shift the text above the consent form image.

text component asking participants to review consent, PsychoPy

Figure 5.7: text component asking participants to review consent, PsychoPy

Another text component in the bottom of the consent form will used to ask the participants to consent. We will make this text red in order to capture their attention.

text component describing how to consent, PsychoPy

Figure 5.8: text component describing how to consent, PsychoPy

Here we create a keyboard component to register the participant’s response to consent. The default key for leaving the experiment is the escape button, so we will set our keyboard keys to ‘y’ for consenting, and ask participants to press escape if they don’t consent.

keyboard component to consent, PsychoPy

Figure 5.9: keyboard component to consent, PsychoPy

Pro: Free

Con: looks very chunky, requires more techincal skills to get demographics (custom code).

Example of consent form done through PsychoPy

5.3 Adding consent form through Google Forms

Sign into Google Forms –> Start a new Blank form

Q1: Here participants would need to paste their identification code
identification code, Google Form

Figure 5.10: identification code, Google Form

Q2: You can copy and paste the consent form here or upload the image of the form for easier formatting. Reponse is required to move forward.
consent form, Qualtrics

Figure 5.11: consent form, Qualtrics

Q3 and Q4: demographic information as above (age and gender)
age & gender information, Google Form

Figure 5.12: age & gender information, Google Form

End of survey: ending the survey with the link to the experiment that the participant must click
end of survey, Google Form

Figure 5.13: end of survey, Google Form

Pro: Free. Clean presentation, keeps demographics and consent information separate from data.

Con: participants need to click on link to go to experiment. Manual crediting for participation.

Example of consent form done through Google Form