Open data · CC BY 4.0 · version 2.3.0

Open data

The aggregate datasets behind TEEI's published impact figures, downloadable and citable. How each figure is produced is documented separately in the measurement methodology.

Datasets

Country breakdown

Members, active volunteers and active learners per country, for all 148 countries.

Basis: Residence at the snapshot of 23 July 2026

JSON CSV

Frozen totals

The historical half of the record: sessions, conversation hours and scheduled hours as at the snapshot. Citable because it does not move.

Basis: The snapshot of 23 July 2026

JSON

Live measured totals

Current sessions, conversation hours and member countries, read from the platform and regenerated continuously.

Basis: Continuous, cached one hour

JSON

Data dictionary

Field	Meaning
`iso`	ISO 3166-1 alpha-2 country code.
`members`	Profiles with a valid country code, whether or not they have taken a session.
`volunteers`	Profiles that appeared as an adviser in at least one booking, or published an offering.
`learners`	Profiles that appeared as a learner in at least one booking.
`conversationHours`	Measured time both participants were in the video room, floored to a tenth of an hour.
`sessions`	One-to-one bookings that completed and passed the five-minute shared-presence floor.

Suppression

Public surfaces bucket per-country per-role counts below 5 as "<5". The public API returns only global aggregates. This static contract is the human-reviewed source for per-country figures.

In practice: any per-country figure between 1 and 4 is published as the string <5, which affects 110 of 148 countries. Totals are unaffected; only the breakdown is masked. Consumers should treat those cells as missing rather than as zero.

Person-level data

Every dataset here is an aggregate. The platform records behind them contain personal data and stay in the source system. Each figure here is already published elsewhere on this site; the datasets make it checkable.

Licence and citation

Creative Commons Attribution 4.0. Use it, including commercially, with attribution.

The Educational Equality Institute (2026). TEEI Impact Measurement Methodology, dataset version 2.3.0. https://theeducationalequalityinstitute.org/about/impact/methodology/

@misc{teei_impact_methodology,
  author       = {{The Educational Equality Institute}},
  title        = {TEEI Impact Measurement Methodology},
  year         = {2026},
  version      = {2.3.0},
  howpublished = {\url{https://theeducationalequalityinstitute.org/about/impact/methodology/}},
  note         = {Historical half frozen at 2026-07-23; live figures at /api/impact-stats.json}
}