🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiSvenskaРусскийفارسی中文日本語EntityQ18757· pop 23· linked from 238 articlesvalidityextent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real worldAvailable in 21 languagesEspañolDeutsch中文РусскийItalianoBasqueCzechEstonianHebrewHungarianKazakhConnectionsdependent and independent variablesEntityphilosophyEntityCategoriesPhilosophy of sciencePsychometricsValidity (statistics)