RT Journal Article SR Electronic A1 Zeleníková, Renáta A1 Žiaková, Katarína T1 VALIDATION OF THE DEFINING CHARACTERISTICS OF THE NURSING DIAGNOSIS DEFICIENT KNOWLEDGE JF Profese Online YR 2012 VO 5 IS 1 SP 35 OP 39 DO 10.5507/pol.2012.008 UL https://profeseonline.upol.cz/en/artkey/pol-201201-0008.php AB Aim: The aim of the study was to validate the nursing diagnosis Deficient Knowledge by a chosen sample of Slovak nurses - experts, i. e. to find out which defining characteristics are considered major and minor.Methods: The Fehring's Diagnostic Content Validity Model was used to evaluate the defining characteristics of nursing diagnosis Deficient Knowledge.Results: The following defining characteristics were marked as major: "verbalization of the problem", "inaccurate compliance with instructions". The following characteristics were marked as minor: "poor and inaccurate performance in a test" and "inappropriate behaviour". The defining characteristic "exaggerated behaviour" had the weighted ratio less than 0.5.Conclusion: Not all defining characteristics of nursing diagnosis Deficient Knowledge found in NANDA-International classification system are equally significant for chosen sample of Slovak nurses to determine this nursing diagnosis.