Cohort Analytics · xAPI-backed · Learning Engineering L1

What the cohort
actually did.

Every checklist tick, exit-ticket response, session sign-off, and rubric assessment emits an xAPI statement. This page reads the statement store, rolls it up against the 25-criterion rubric bar and the 54 learning outcomes, and surfaces the three signals that drive program revision: where the cohort is stuck, where raters disagree, and which LOs aren't getting evidence.

COHORT · — ACTOR · — STATEMENTS · 0 LRS · local-only

Learners

Session completions

Checklist events

Exit-ticket events

Rubric assessments

Rubric criterion pass-rate

Proficient-floor pass rate per criterion. <70% cohort-wide signals a session gap, not a learner gap.

Session completion funnel

Share of cohort who have marked each session complete.

LO evidence coverage

Green = cohort has produced evidence against this LO this week. Gaps here flag evaluation-plan triggers.

Skills growth · pre vs post self-assessment

0–4 Likert on 8 skills. Left bar = S1 pre, right bar = S12 post. Negative deltas are real: they usually mean calibration, not regression.

Inter-rater reliability

Two-grader sample across D1–D5. Cohen's κ tracked over time. Target κ ≥ 0.70.

Live κ is computed from paired reviewed statements distinguished by context.extensions.rater. A κ below 0.70 on a criterion is the signal to re-calibrate raters against the written descriptor — not to re-grade the cohort.

Event stream

Most recent 50 xAPI statements from the queue.