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When to use colour tagging

  • Coloop’s colour tagging method is designed to enhance accuracy in concept testing by automatically identifying and tagging concepts during video analysis.
  • This method works best when participants are presented with a stimulus deck (containing one concept per slide) and videos featuring that deck are analysed.

Prepare your stimulus deck

To ensure effective concept tagging, follow these steps when creating your stimulus deck:
  • One Concept Per Slide: Each slide should focus on a single concept, whether it’s an image or text.
If you have more than once concept per slide please see below
  • Add a Distinct Colour Box:
  • Place a small colour box in one corner of the each slide.
    • The colour box must be unique from other elements on the slides to avoid confusion during analysis.
    • Use the same colour throughout the deck for all concepts.
    • Add the name of the concept inside the colour box, and make sure the concept name stays on a single line.
Screenshot 2025-07-01 at 10.50.52.png
Be sure to present this deck during your interviews and confirm that the recording clearly captures the slides.

Set up your project

Once your stimulus deck is ready and you’ve collected your data, you can set up your project in Coloop:
  1. Create a New Project:
    • Log into Coloop and create a new project as you normally would.
    • Upload your discussion guide if applicable.
  2. Enable Concept Testing:
    • Turn on the “concept testing” feature within your project settings. Screenshot 2025-07-01 at 09.29.26.png
    • Input all relevant concept names into Coloop so they can be linked to their respective slides later. Screenshot 2025-07-01 at 09.29.44.png
  3. Upload your slide deck
    • Upload your prepared slide deck into Coloop.
    • Please note your slide deck must be in PDF format. Screenshot 2025-07-01 at 11.10.25.png
  4. Enable Colour Detection
    • Enable colour detection by selecting the toggle beneath your uploaded slide deck. Screenshot 2025-07-01 at 11.11.09.png
    • Use Coloop’s pipette tool to align its internal colour tag boxes with those on your slides.
    • Select the colour from your uploaded slides using the pipette tool to match them with their corresponding concepts in Coloop. Screenshot 2025-07-01 at 09.31.02.png
  5. Set Colour Detection Tolerance
    • Coloop uses tolerance levels to determine how closely colours need to match between what appears on-screen and what was uploaded in your slide deck:
      • Choose between low, medium, or high tolerance depending on how precise you want detection to be.
      • If unsure about which setting works best, start with medium tolerance as it provides balanced results.
      Screenshot 2025-07-01 at 11.16.23.png
  6. Import Video Content Import the video files of your interviews using the ‘Video’ import function.
  7. Verify Auto-Labelling Before proceeding and transcribing video content:
    1. Review auto-labelled PDFs generated by Coloop after uploading your files.
    2. Ensure that all concepts have been tagged correctly based on their associated colours and names. Click ‘Complete’ to review the pdf. Screenshot 2025-07-01 at 15.24.04.png
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  8. Transcribe Videos & Assign Concept Decks Transcribe your videos following these steps:
    1. Set language preferences and specify the number of speakers involved in discussions.
    2. Select the uploaded slide deck as a reference point during transcription setup.
    3. After transcription is complete, confirm speaker identities within Coloop’s interface. Screenshot 2025-07-01 at 09.51.05.png
  9. Review Transcripts and Check Concept Tags
    • Review auto-tagged text segments that correspond to specific concepts visible on-screen at particular times during discussions.
    • This allows you to analyze participant feedback directly tied to individual concepts without manual effort.
Screenshot 2025-07-01 at 11.36.07.png

Multiple Concepts Per Slide

We strongly recommend having one concept per slide wherever possible.
CoLoop cannot differentiate between multiple coloured boxes on one slide. Therefore, if any slides contain more than one concept you will need to follow these steps:
  1. Label such slides under one title (e.g., “multi”) within your stimulus deck before uploading it into Coloop. Screenshot 2025-07-01 at 11.47.48.png
  2. Add additional labels manually to the PDF once loaded into CoLoop in the files section. Open the PDF and edit concept labels. Press submit when ready to confirm labels. Screenshot 2025-07-01 at 11.50.57.png CoLoop will automatically apply all the labels you assign to the slide to any relevant sections while that slide is onscreen. You can review and edit these labels afterward if needed.

Multi-Market & Multi Deck Projects

Colour tagging is especially helpful when you’re running multi-market or multi-language concept tests and have separate stimulus decks for each group. It’s ideal when:
  • You have multiple decks (e.g. English, French) with the same concepts presented in each
  • Each slide shows one concept, with consistent colour tags across all versions
  • Participant videos are recorded while they view the matching deck
This setup allows CoLoop to accurately identify concepts across different markets—even if the deck content is translated—by relying on consistent colour cues.