Reliability means: (A) Number of times the same results on repeated trials, (B) Number of times variation is seen, (C) Extent of accuracy, (D) Level of simplicity
Answer is A. ref: Park&;s 23rd edition pg138 Reliability / repeatability / precision: that is test must give consistent results when repeated more than once on the same individual or material, under the same conditions. note: Validity or accuracy: given by sensitivity and specificity. Diagnostic power or Predictablity: includes positive and negative predictive values. in order to include or exclude the person.