title: Item analysis in the school--achievement test. I.
mesh_terms: D000124:Achievement; D055598:Chemical Phenomena; D002621:Chemistry; D003604:Czechoslovakia; D004521:Educational Measurement; D005260:Female; D006801:Humans; D008297:Male; D055585:Physical Phenomena; D010825:Physics; D012570:School Admission Criteria; D013337:Students, Medical