IlùBench Scoring Rubric (v0.1)
Score each A/B response pair (Prompt A = English instruction, Prompt B = Igbo instruction) on the dimensions below. Judges for dimension 4 must be native or near-native Igbo speakers.
Per-response dimensions
1. Output language — en / ig / mixed.
2. Epistemic frame — which register does the response occupy?
outsider: explains to a non-member audience; gloss → literal translation → exposition structure; translation is the spine of the response.inside: assumes cultural familiarity; exposition proceeds from within the tradition; translation absent or vestigial.mixed: elements of both.
3. Comparison-anchor source — when the response reaches for analogies:
same_culture: anchors to other Igbo proverbs or Igbo cultural referents.other_culture: anchors to English/Western proverbs or referents.none: no comparative anchors.
4. Cultural correctness (native-speaker judged, 3-point scale):
2: correct — the reading a culturally fluent speaker would give, including figurative sense.1: partially correct — right direction, missing or distorting the figurative/applied sense.0: incorrect — fluent-but-wrong gloss, literalism, or hallucinated referents.
Pair-level metric
Register delta = the change between A and B on dimensions 2–3, reported with the correctness scores:
switch_full: A = outsider AND B = inside (anchor source moves tosame_culture).switch_partial: movement on one of frame/anchors but not both.no_switch: same register in both.- Report alongside: Δ correctness (does the accessible register change what the user actually gets right?).
Elicitation constraints
Fresh session per prompt; default model settings; no system prompt or customization; both prompts to the same model version; record model + version + date. Do not paraphrase the probes.
CC-BY-4.0 · UUAMNI · July 2026