Everything VariesSignificanceGood and Bad HypothesesNull Hypothesesp ValuesInterpretationModel ChoiceStatistical ModellingMaximum LikelihoodExperimental DesignThe Principle of Parsimony (Occam's Razor)Observation, Theory and ExperimentControlsReplication: It's the ns that Justify the MeansHow Many Replicates?PowerRandomizationStrong InferenceWeak InferenceHow Long to Go On?PseudoreplicationInitial ConditionsOrthogonal Designs and Non-Orthogonal Observational DataAliasingMultiple ComparisonsSummary of Statistical Models in ROrganizing Your WorkHousekeeping within RReferencesFurther Reading