Introduction: An overview of single-case intervention research / Thomas R. Kratochwill and Joel R. Levin -- Constructing single-case research designs: logic and options / Robert H. Horner and Samuel L. Odom -- Enhancing the scientific credibility of single-case intervention research: randomization to the rescue / Thomas R. Kratochwill and Joel R. Levin -- Visual analysis of single-case intervention research: conceptual and methodological issues / Thomas R. Kratochwill, Joel R. Levin, Robert H. Horner, and Christopher M. Swoboda -- Non-overlap analysis for single-case research / Richard I. Parker, Kimberly J. Vannest, and John L. Davis -- Single-case permutation and randomization statistical tests: present status, promising new developments / John M. Ferron and Joel R. Levin -- The single-case data-analysis ExPRT (excel package of randomization tests) / Joel R. Levin, Anya S. Evmenova, and Boris S. Gafurov -- Using multilevel models to analyze single-case design data / David M. Rindskopf and John M. Ferron -- Analyzing single-case designs: d, G, hierarchical models, Bayesian estimators, generalized additive models, and the hopes and fears of researchers about analyses / William R. Shadish, Larry V. Hedges, James E. Pustejovsky, David M. Rindskopf, Jonathan G. Boyajian, and Kristynn J. Sullivan -- The role of single-case designs in supporting rigorous intervention development and evaluation at the institute of education sciences / Jacquelyn A. Buckley, Deborah L. Speece, and Joan E. McLaughlin -- Single-case designs and large-N studies: the best of both worlds / Susan M. Sheridan -- Using single-case research designs in programs of research / Ann P. Kaiser -- Reactions from journal editors: Journal of school psychology / Randy G. Floyd -- Reactions from journal editors: School psychology quarterly / Randy W. Kamphaus -- Reactions from journal editors: School psychology review / Matthew K. Burns.