title: Variation: use it or misuse it--replication and its variants.
authors: Gordon B
authors: GB
authors: Drummond
authors: Sarah L
authors: SL
authors: Vowler
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D003627:Data Interpretation, Statistical; D011898:Ranidae; D015203:Reproducibility of Results; D012107:Research Design / Q000706:statistics & numerical data*; D015983:Selection Bias