Mach V (1968)
“15A. There are very few people in the world worth concerning oneself about.”
CITM_91f3c5820c7f · 4 source instruments · 1 surface variant
15a there are very few people in the world worth concerning oneself about
Normalization rule (PRN-050): lowercase, strip non-word/space punctuation, collapse whitespace, trim. Used for fast dedup matching across the instrument corpus.
No normative benchmark yet for this item. Item-level norms require per-respondent response distributions; they populate from published norms where available and sharpen as anonymized, aggregated deployment responses are contributed (the benchmark flywheel).
The verbatim item text as it appeared in each source instrument. Cross-instrument variation is preserved here; the normalized form above is the dedup key.
“15A. There are very few people in the world worth concerning oneself about.”
“15A. There are very few people in the world worth concerning oneself about.”
“15A. There are very few people in the world worth concerning oneself about.”
“15A. There are very few people in the world worth concerning oneself about.”
Programmatic access: this row is also available via the registry REST surface at /api/v1/items/CITM_91f3c5820c7f and via the MCP gateway as principia.items.lookup.