1. Facharztprüfung Radiologie-Teil 2

Minimizing the sample size (4)

  • continuous Measures (vs. Categories) (=test mathematical more powerful)
  • more precise measurements (z.B. paired: lesion size before/after therapy-> SD smaller within individuals)
  • use unequal group sizes (statistically
    most efficient if the two groups are equal, but benefit is still gained by studying
    more individuals)
  • expand the minimum expected Difference

Diskussion