Impact methodology
How TEEI measures impact
We track programme delivery, participant progress and the experience of taking part. Explore the measures behind TEEI’s work, how they are calculated, and the sources and reporting dates behind each published figure.
Five pillars · clear definitions · dated sources
language.theeducationalequalityinstitute.org · TEEI Language and Mentorship
12,021 completed sessions · 148 member countries · 7 sessions awaiting evidence
The measurement map
Explore TEEI’s measures across delivery, outcomes, experience, access and stewardship. Each measure connects to its definition, source and related figures. Hover over a measure to highlight those connections, or open its row for the details.
counter Completed sessionsLanguage and Mentorship Value available
Completed one-to-one sessions across Language and Mentorship. The session method defines the current attendance threshold and the historical counting rules.
counter Conversation hoursLanguage and Mentorship Value available
Shared conversation time recorded for participants in one-to-one sessions.
counter Member countriesLanguage and Mentorship Value available
Countries represented by registered platform members, based on residence. Small counts use the published suppression rules.
counter Group sessions heldLanguage Value available
Group sessions with a recorded end time, excluding automatic scheduler closures.
counter Group participant hoursLanguage Value available
Each participant’s recorded attendance time, added across group sessions and reported separately from one-to-one conversation hours.
counter Group participantsLanguage Value available
Participants whose recorded attendance meets the five-minute threshold for a group session.
api Credentials issuedLanguage and Mentorship 635 Value available
Certificates issued when a published programme requirement is met, reported by credential type.
api Buddy matchesWomen Buddy Programme 15 Value available
Active participant and volunteer matches in the Women Buddy Programme, with the stage reached by each relationship.
api Buddy meetingsWomen Buddy Programme 7 Value available
Recorded meetings between matched pairs in the Women Buddy Programme.
record Recurring commitmentsLanguage and Mentorship Definition available
Active recurring session arrangements between learners and volunteers.
record Partner platform placesSkills Academy Definition available
Places provided through partner learning platforms, reconciled with TEEI’s membership records.
canon Partner learning hoursSkills Academy Value available
Learning time reported by partner platforms using their own measurement definitions, presented separately from TEEI conversation hours.
canon Partner learning unitsSkills Academy Value available
Completed learning activities recorded by the partner. The DataCamp figure includes lessons, exercises, assessments and projects.
canon People reachedOrganisation Value available
Cumulative programme reach since 2022, based on registration and participation records. The counting definition explains cross-platform deduplication.
canon Impact hoursOrganisation Value available
Recorded learning, mentoring and participation time across TEEI programmes, reported as a programme-wide measure.
canon Volunteer hoursOrganisation Value available
Volunteer time contributed through TEEI programmes since 2022, including the volunteer time captured in conversation hours.
canon Countries reachedOrganisation Value available
Countries represented across TEEI’s participants, volunteers, partners, supporters and wider community.
canon Participant countriesOrganisation Value available
Countries represented by participant and volunteer registrations on TEEI’s programme platforms.
canon Language learnersLanguage Value available
Learners recorded in TEEI’s language practice and language programmes since 2022.
canon MenteesMentorship Value available
People matched with a mentor through TEEI Mentorship since 2022.
canon MentorsMentorship Value available
Volunteers who have taken on at least one mentee through TEEI Mentorship since 2022.
record Contributions logged by partnersCompliance Definition available
Employee contribution time recorded by partners in CSR Cockpit, identified as self-reported and presented separately from measured conversation hours.
api Language level recordedLanguage 482 Value available
Recorded language-level assessments, each with a date and the basis for the assigned level.
api Level movementLanguage 29 Value available
Changes between a learner’s recorded language levels, reported alongside the number of learners with repeat measurements.
api Placement assessmentsLanguage 133 Value available
Completed placement assessments and the language levels they recorded.
Assessment basis: Recorded placement level.
api Learner confidenceLanguage 57 Value available
Learners with both an initial and a later confidence rating, providing the basis for comparing their self-reported confidence over time.
record Learners who came backLanguage and Mentorship Definition available
Learners who completed more than one session, reported against all learners who completed a first session.
api Goals reachedLanguage 5 Value available
Learner goals recorded as achieved, including achievements observed by volunteers during sessions.
Reporting basis: Recorded learner goals and volunteer observations.
none One Connection outcomesHealth Equity Planned measure
Planned study measures covering recruitment, matching, relationship continuity and the participant outcomes specified in the One Connection protocol.
api Session ratingsLanguage and Mentorship 675 Value available
Learner feedback on one-to-one sessions, reported with the number of ratings received.
record Group session ratingsLanguage Definition available
Participant feedback on group sessions.
record Reviews from the earlier platformLanguage and Mentorship Definition available
Historical session ratings from TEEI’s earlier platform, presented as a separate feedback series.
record Employee experienceCompliance Definition available
Partner employees’ programme ratings, reported by programme with the number of responses.
api Volunteers approvedLanguage and Mentorship 192 Value available
Volunteer profiles approved to receive session requests, reported alongside the total number of profiles started.
api Volunteers deliveringLanguage and Mentorship 83 Value available
Volunteers who completed at least one session during the stated reporting period.
api Hours offered aheadLanguage and Mentorship 1,936.3 h Value available
Session hours available over the next 30 days, with the number of volunteers offering them.
api Application screeningLanguage and Mentorship 208 Value available
Application outcomes from automated first-pass screening, including applications referred for human review.
api Volunteers pausing and returningLanguage and Mentorship 20 Value available
Recorded volunteer pauses, submitted returns and requests to resume availability.
api Level test handoffLanguage 100 Value available
Placement tests issued through the website and taken up on the learning platform.
counter Evidence coverageLanguage and Mentorship Value available
Sessions awaiting the attendance evidence required to determine their final status.
api Corrections issuedLanguage and Mentorship 4 Value available
Attendance records corrected after settlement.
api Reminders deliveredLanguage and Mentorship 14,762 Value available
Session-reminder delivery outcomes, including reminders delivered and reminders that expired.
api Data rights requestsOrganisation 25 Value available
Requests to access, correct, transfer or delete personal data.
api Cookie choicesOrganisation 24,880 Value available
Recorded cookie preferences, including the share of choices allowing analytics.
api Advertising consentOrganisation 520 Value available
Recorded decisions on advertising data and personalisation.
api Communication preferencesOrganisation 571 Value available
Participants’ chosen communication channels and topics, together with recorded preference changes.
api Email reliabilityOrganisation 31,290 Value available
Delivery outcomes for TEEI emails, including delivered, bounced, suppressed and failed messages, and complaints.
api Notifications readLanguage and Mentorship 27,010 Value available
Platform notifications sent and the number opened by recipients.
api Reports receivedLanguage and Mentorship 24 Value available
Participant reports concerning a session or another participant, published as aggregate counts by report type.
api Reports acted onLanguage and Mentorship 20 Value available
Participant reports reviewed with a recorded outcome, presented alongside the number received.
api Content moderatedOrganisation 8 Value available
Moderation actions on uploaded video, grouped by action type.
record Evidence lineageCompliance Definition available
The documented connection between a figure in a partner report and its underlying source record.
record Partner reports producedCompliance Definition available
Reports generated in CSR Cockpit and their recorded approval status.
none Research outputs and their useResearch Planned measure
Planned reporting on published protocols, studies, datasets and software, with downloads and documented use tracked as separate measures.
none Policy contributionsAdvocacy and Policy Planned measure
Planned reporting on published positions, institutional responses and changes in practice, with dates, supporting evidence and contributors.
TEEI’s published figures
Find the figure you need and explore its definition, source and reporting date. Each entry explains the activity or population it covers and connects you to the relevant measurement details.
Completed sessions and conversation hours12,021 sessions · 9,096.2 hours Completed one-to-one sessions and shared conversation time across TEEI Language and TEEI Mentorship. read at 22:21 UTC · 4724 msPlatform records, settled against attendance evidenceExplore the session method →
- Data reference
- the live counter, read as this page loaded
- Access the source data
curl -s https://language.theeducationalequalityinstitute.org/api/lc/public-stats
Member countries148 countries Countries represented by registered platform members, based on residence. read at 22:21 UTC · 4724 msRegistration records, counts below five suppressedExplore the session method →
- Data reference
- the live counter, read as this page loaded
- Access the source data
curl -s https://language.theeducationalequalityinstitute.org/api/lc/public-stats
People reached20,000+ Cumulative programme reach since 2022, drawn from registration and participation records across TEEI.A floor, not a point estimate. It is older than the live figures above and says so. December 2025Registration and participation records across programmes, deduplication best effort
- Data reference
- TEEI’s organisational reporting record
- Definition
- Individuals who have registered for or participated in at least one TEEI programme since 2022.
- Counting basis
- Cumulative programme reach, with cross-platform deduplication where available.
- Exclusions
- Anonymous website visitors
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.peopleReached
Impact hours66,900+ Recorded learning, mentoring and programme participation time since 2022. This programme-wide measure is reported separately from the conversation-hours figure. December 2025Programme records across learning, mentoring and participation
- Data reference
- TEEI’s organisational reporting record
- Definition
- Aggregate time spent by learners and volunteers in TEEI programmes, including learning, mentoring, and structured participation.
- Exclusions
- Estimated time without an agreed methodology
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.impactHours
Volunteer hours10,000+ Volunteer time contributed through mentoring, teaching, language practice and related programme activities since 2022. Conversation hours are included within this measure. December 2025Programme records of volunteer time
- Data reference
- TEEI’s organisational reporting record
- Definition
- Volunteer time delivered through mentoring, teaching, language practice, and related programme activities.
- Exclusions
- Internal operations time. Unverified self-reported hours without programme linkage
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.volunteerHours
Sessions on the earlier platform9,337+ A historical snapshot of language and mentoring sessions recorded on Kintell. This programme history is included in the combined session total above. April 2026Export from the platform TEEI used until April 2026
- Data reference
- TEEI’s organisational reporting record
- Definition
- Sum of completed/confirmed bookings in the Kintell LFU (8,883) + MFU (454) exports. Presented as a floor (+) because sessions continued after the export snapshot.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.completedSessions
DataCamp hours71,000+ Learning time recorded for TEEI’s Ukrainian learner group through the DataCamp Donates partnership since March 2022.Learning time on a partner platform. It is never added to TEEI conversation hours. July 2026The partner’s dashboard, on the partner’s own definition
- Data reference
- Partner dashboard data recorded in TEEI’s organisational reporting record
- Definition
- Time-on-platform for the TEEI learner group, read from the DataCamp Donates group dashboard. Presented as a floor (+); growing roughly 1,600 hours per month.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.datacampHours
DataCamp learning units254,888 Completed DataCamp learning activities, including lessons, exercises, assessments and projects. September 2026The partner’s dashboard
- Data reference
- Partner dashboard data recorded in TEEI’s organisational reporting record
- Definition
- One completed lesson, exercise, assessment or project counts as one unit. Split at the reading: Practice 193,279, Learn 57,096, Apply 2,748, Assess 1,765. Up 8,092 in the preceding 30 days. This is an exact reading, not a floor.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.datacampLearningUnits
Countries reached187+ Countries represented across TEEI’s participants, volunteers, partners, supporters and wider community.Wider than member countries above, which counts platform registrations only. July 2026Participants, volunteers, partners and supporters across TEEI activities
- Data reference
- TEEI’s organisational reporting record
- Definition
- Countries represented across TEEI programme participation, volunteer and community activity, supporter reach, or verified organisational reach.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.countriesReached
Programme participant countries50+ Countries represented by participant and volunteer registrations across core programme platforms. May 2026Participant and volunteer registrations on the programme platforms
- Data reference
- TEEI’s organisational reporting record
- Definition
- Countries represented by participant and volunteer registrations across core programme platforms.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.primary.programmeParticipantCountries
Language learners8,000+ Cumulative participation in TEEI’s language practice and language programmes since 2022. December 2025Programme registration records
- Data reference
- TEEI’s organisational reporting record
- Definition
- Individuals who participated in language practice or language courses via TEEI platforms.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.programmeSpecific.languageProgrammes.learners
Mentees and mentors2,000+ mentees · 400+ mentors Mentees and mentors recorded through TEEI Mentorship since 2022. December 2025Programme registration records
- Data reference
- TEEI’s organisational reporting record
- Definition
- Individuals registered as mentees on the mentoring platform.
- Reporting owner
- TEEI Documentation Team
- Data reference
canonicalNumbers.programmeSpecific.mentorsForUkraine.mentees
What each pillar measures
TEEI’s five pillars cover education, health equity, research, advocacy and compliance. Each uses measures suited to its work, from learning and social connection to research outputs, institutional contributions and partner reporting.
Education
37 measures · 32 values availableWe track one-to-one and group learning, credentials, partner-platform participation, recorded language levels, learner confidence and continued participation.
The published session method explains how attendance records become completed sessions and verified conversation hours.Explore the session method
Health Equity
draft protocol published · 1 planned measureOne Connection’s draft study protocol sets out how recruitment, matching, relationship continuity and participant outcomes will be assessed.
It specifies UCLA-3, PHQ-9, GAD-7, FACT-BMT and PROMIS social isolation, with planned ClinicalTrials.gov registration before enrolment and CONSORT reporting for pilot trials.Read the One Connection protocol
Research
first output published · 1 planned reporting measureResearch reporting covers TEEI’s protocols, studies, datasets and software, together with their documented use.
The first published output is the L2SAFE pilot: 24 paired items, an eight-item safety subset and analysis of the discordant pair. The planned register will track published outputs and their use.Explore the L2SAFE pilot
Advocacy and Policy
six published streams · 1 planned measureSix advocacy streams connect TEEI’s programme experience with published research.
The planned contribution register will document published positions, institutional responses and changes in practice, with dates, supporting sources and contributing actors.Explore the advocacy streams
Compliance
4 measures defined · reporting plannedMeasurement covers employee contributions, partner reports, evidence completeness and connections to disclosure points.
CSR Cockpit links report figures to their underlying records and identifies self-reported contributions alongside measured programme activity.Explore CSR Cockpit
Across all programmes
11 measures · 11 values availableOrganisation-wide measures cover cumulative reach and participation alongside data rights, consent, communication preferences, message delivery and content moderation.
The organisational reporting record brings these figures together with their definitions, sources and reporting dates.Explore TEEI’s transparency record
Hover over a mark to identify its measure. Select it to open the corresponding definition in the measurement map.
How our figures are produced
Our reporting principles connect published figures to their source records, protect participant information and document the methods used.
Current-platform session totals use settled attendance records. Sessions awaiting evidence appear separately in the counter, 7 of them as this page loaded.
Corrections identify the revised figure and the publication they update.
Small-group figures are published as ranges or withheld to protect participant privacy.
Published methods carry a version identifier, linking reported figures to the calculation used.
Use TEEI data in your work
- Questions about our measures
- Contact our team for help with a figure, its definition or its source. Include the figure and the page where you found it. partnerships@theeducationalequalityinstitute.org
- Using TEEI figures in a report
- Include the value, its reporting date and the relevant measurement method in your citation. Together, these identify the figure and its context.