Words / C1

v-uh-LID-uh-tee/vəˈlɪdəti/

Validity is the state of being logically or legally sound, or of measuring what it claims to measure: the validity of a test, legal validity. Valid (already in the dictionary) is the adjective; dropping a night slice silently is a methods hole.

Meaning

The state of being logically or legally sound, or of measuring what it claims to measure.

Examples

• “Validity collapses if the night cohort is silently dropped from the n.”
• “Soundness is the close twin. Reliability is consistency, not the same. A drop is a choice. A frame is a list. Name the exclusion, or put the nights back.”

Good to know

Soundness (logic, law, or measurement). Adjective: valid (already in the dictionary). A silent drop ≠ a valid n.

Near in meaning

soundness

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