{"code":"C68741","name":"Z-Score","terminology":"ncit","version":"26.09d","conceptStatus":"DEFAULT","leaf":false,"active":true,"synonyms":[{"name":"Z SCORE","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"CDISC"},{"name":"ZScore","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"CDISC"},{"name":"Standard Score","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Z Score","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Z-Score","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Z-Score","type":"Preferred_Name","typeCode":"P108"}],"definitions":[{"definition":"A method for converting an individual score into a standard form. The z-score indicates how far and in what direction an item deviates from its distribution's mean, expressed in units of standard deviation. Calculation of a z-score requires knowledge about the population's standard deviation and mean.","code":"P97","type":"DEFINITION","source":"NCI"},{"definition":"The number of positive or negative standard deviations of a measured value from the mean of its population.","code":"P325","type":"ALT_DEFINITION","source":"CDISC"}],"properties":[{"code":"P322","type":"Contributing_Source","value":"CDISC"},{"code":"P366","type":"Legacy Concept Name","value":"Z-Score"},{"code":"P106","type":"Semantic_Type","value":"Quantitative Concept"},{"code":"P207","type":"UMLS_CUI","value":"C0871421"}]}