Teacher–Student Centeredness Analyzer (Revised)

Developed by Kevin Droe, Ph.D.

Tap Start for the category you are observing. Starting one category automatically stops the others. The app computes a centeredness score (−100 teacher-centered to +100 student-centered) and live percentages.

Tip: turn on Automatic classification to use number keys (1–8) while observing video or live.

Automatic classification

Case A — YouTube

Sync observation to playback

If embedding fails (restricted video, privacy settings, etc.), you can upload the video instead.

Case B — Upload Video

Sync observation to playback

Choose a local video file to enable the player.

Embedded player

Sync works with both YouTube and uploaded video (play starts observation; pause stops observation).

Keyboard (when Automatic classification is ON):

Press 1–8 to start that category (and stop the others). Press Space to Stop/Pause.

Centeredness score uses only teacher vs. student time: score = ((student − teacher)/(student + teacher)) × 100. “Other” is treated as neutral for the score but included in percentages.

Event Log

Jump seeks video

Each time you start a category, an event is logged. Use Jump to to seek video (Video mode) or to highlight the event (Live mode).

No events yet. Start a category to add events here.

Centeredness Gauge

−100 Teacher +100 Student

Centeredness score

Total observed time00:00:00

Teacher % (1–3)0.0%

Student % (4–7)0.0%

Other % (8)0.0%

Notes

Export Data (Text)

Includes times and percentages for each category plus the centeredness score.

Session Info

Active categoryNone

ModeLive

Sync to playbackOff

Quick Tips

• If you want the Event Log to align with video time, turn ON Sync observation to playback and hit play first.
• You can still log events while paused; “Jump to” will seek to the logged time.