irrelevantirreversible processising modelisochronisokurtic arraysisometryisotonicisotonic inferenceisotonic regressionisotropicisotropic distributionisotropyitemitem analysisitem examine samplingitem response theoryitem samplingiteratediterated exponential distributioniterated integraliterated maximum likelihood estimateiterationiterative ellipsoidal trimmingiterative methoditerative processiterative proportional fittingiterative regressioniteratively reweighted least squaresito processes