ALEKS (Assessment and Learning in Knowledge Spaces) is an artificial intelligence-based system for individualized learning, available over the World Wide Web. ALEKS delivers precise, qualitative diagnostic assessments of students' knowledge, guides them in the selection of appropriate new study material, and records their progress toward mastery of curricular goals in robust classroom management system. It interacts with the student much as a skilled human tutor would, moving between explanation and practice as needed, correcting and analyzing errors, defining terms and changing topics on request. By sophisticated modeling of a student's "knowledge state" for a given subject matter, ALEKS can focus clearly on what the student is most ready to learn next, building a learning momentum that fuels success."ALEKS for Statistics" covers the topics covered in most one-semester introductory statistics courses, including the basics of descriptive statistics, probability, frequency distributions, confidence intervals, hypothesis testing, ANOVA, and correlation and regression.