Observers watch from their own room.[1]
The participant sees the moderator and nobody else. Booking, the video room, the recording and the transcript are one study, so the Zoom call, the Calendly link and the transcription service can go.
30 study-days free. No card.
Moderated interviews and moderated usability sessions, one to four participants, with booking, recording, transcripts and a backroom for up to 25 observers.
Join the backroom. The participant's screen doesn't change.
A moderated interview is a session where a researcher talks with one participant in real time, follows up on what they say and steers the tasks.
Clients and colleagues watch from a backroom with their own notes and a backchannel to the moderator. The participant's side of the call never receives any of it.
Join, and see which side of the room changes.
One screen to book, one link to join.
Participants pick a time in their own time zone and get an email with a calendar invite and the join link. On the day they join from the browser, after a camera and microphone check.
Rescheduling or cancelling is a link in the same email.
A SUS at hang-up, while the prototype is fresh.
Blocks after the session reach the participant the moment you end it, so the questionnaire arrives before they've closed the tab.
Stroop is the all-in-one research and testing platform. Run usability tests, prototypes, surveys, tree tests, diaries and IATs in one study, and get results back transcribed, scored and charted, with every finding linked to the session it came from.
The session closes transcribed, with the backroom's notes on it.
By the time the moderator has written up their notes, the transcript is in, the summary cites the moments it came from, and every observer note sits on the line it was written against.
How analysis worksWhere it stops.
A moderated round of up to 10 session-hours in a week is $63. See every rate
- A session holds up to four participants, so it suits paired interviews and small groups, not an eight-person focus group.
- If your client insists on Teams or Zoom, run the call there and upload the recording afterwards. You keep the player, transcript and analysis, and lose the backroom.
Questions
How many interviews do I need?
- For a single audience and a focused question, five to eight sessions usually show the pattern, and the ninth tells you little new. Run more when you're comparing groups: five or six per segment. Schedule a spare slot or two, because someone always misses theirs.
How long should a moderated session be?
- Forty-five to sixty minutes for an interview, thirty for a focused usability task. Book a fifteen-minute buffer after each one for notes. The booking page offers slots at the length you set, and the buffer keeps two sessions from running into each other on the moderator's calendar.
Can observers talk to the moderator during the session?
- Yes, in the backchannel: a chat in the backroom that the moderator sees beside the stage and the participant never receives. Observers can also write notes, which land on the recording's timeline at the second they started typing. Ten observers can watch by default, and you can raise it to 25.
What counts as a session-hour?
- Time from the moment a moderator and the participant are both in the room until it closes, rounded up to the minute and added up per study-week. 10 hours a week are included in the $9 a day; past that, each hour is $4. Observers don't add to it.
Where do the participants come from?
- You invite them and send them the booking link: a client's customers, a recruiter's list, or a panel such as Prolific. Stroop doesn't recruit and charges nothing per participant.