attrition bias

短语

词形变化

attrition biases 复数 attrition biasses 复数

释义与例句

n.
  1. 1.

    A type of selection bias in statistical analysis, caused by loss of participants (attrition) in the course of a study; the subjects that do not run into completion of the study may differ systematically of those who do.

    可数 不可数