green mask tracked through the video (SAM 3 tracker); sync every submission immediately

H:MM:SS times everywhere, live VIDEO TIME clock banner, yellow burned-in clock

keyframes: full frame + zoom with outlined mask; HTML keyframe strip

questionnaire versions A/B/C with separate CSVs

two-pane layout: video left, questions right with independent scrolling

short bold question stems; gaze = moment right before touching

audible audio, sentence-style moves/places, clearer sound and gaze questions, how-to panel

object-specific questions that state the claim being judged

labelled VIDEO TIME clock + time axis

21 clips / 95 objects; narration, gaze and window-boundary fixes; Gemini appearance

gradio eval site with dataset-backed responses