The act of ascertaining.

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  • Ascertainment — As cer*tain ment, n. The act of ascertaining; a reducing to certainty; a finding out by investigation; discovery. [1913 Webster] The positive ascertainment of its limits. Burke. [1913 Webster] …   The Collaborative International Dictionary of English

  • ascertainment — index analysis, certification (certainness), collation, conclusion (determination), detection, determination …   Law dictionary

  • ascertainment — noun see ascertain …   New Collegiate Dictionary

  • ascertainment — See ascertainable. * * * …   Universalium

  • ascertainment — In epidemiological and genetic research, the method by which a person, pedigree, or cluster is brought to the attention of an investigator; has a bearing on the interpretation of segregation ratios, concordance rates, linkage analysis, and other… …   Medical dictionary

  • ascertainment — (Roget s Thesaurus II) noun Something that has been discovered: discovery, find, finding, strike. See TEACH …   English dictionary for students

  • Ascertainment bias — In scientific research, ascertainment bias occurs when false results are produced by non random sampling and conclusions made about an entire group are based on a distorted or nontypical sample. If this is not accounted for, results can be… …   Wikipedia

  • ascertainment bias — systematic error causing failure to represent equally all groups of cases or persons that should be represented in a sample …   Medical dictionary

  • incomplete ascertainment — ascertainment in which only those sibships with at least one affected sib are identified; this is far more common than complete ascertainment …   Medical dictionary

  • multiple ascertainment — a type of incomplete ascertainment in which some sibships are counted more than once because they have more than one affected member; multiplex families (those with more than one affected member) have a higher chance of being ascertained than… …   Medical dictionary

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