stratified multistage samplingstratified samplingstratifierstratumstraw pollstrengthstrength of a sampling planstrength of a teststress strength modelstringentstripstrip plotsstrip samplingstrong convergencestrong law of large numbersstrong true score theorystrongly ergodic classstrongly measurable functionstructural distributionstructural equation modelstructural estimationstructural inferencestructural modelstructural parameterstructural predictionstructural probabilitystructural regressionstructural zerosstructuraliststructurestructure functionstructured matrixstuart maxwell teststudent distributionstudentizationstudentized empirical characteristic functionstudentized extreme deviatestudentized maximal distributionstudentized rangestudentized residualstudystuttering poisson distributionsub balanced datasubadditivesubadditive functionsubdivided surface chartsubexponential distributionsubgraduationsubgroupsubhypothesis testing