tetrachoric

From tetra- +‎ Ancient Greek χῶρος (khôros) +‎ -ic. First used in statistical theory in the early 20th century.

• IPA^(key): /ˌtɛtrəˈkɔːɹɪk/
• Hyphenation: tet‧ra‧chor‧ic

tetrachoric (not comparable)

1. (statistics, of a correlation) Between two dichotomous variables
   • 2015 July 9, “Social Participation and Disaster Risk Reduction Behaviors in Tsunami Prone Areas”, in PLOS ONE‎^[1], →DOI:

     Each rho (ρ) represents the conditional tetrachoric correlation for each pair of outcomes, measuring the extent to which the two outcomes would covary if unobserved characteristics of an individual were indeed observed.

• polychoric

• architector