Search results: Sage Journals

Restricted accessResearch articleFirst published 1984

Extending the Relational Algebra for Relations with Maybe Tuples and Existential and Universal Null Values

Joachim Biskup

Fundamenta Informaticae

Restricted accessResearch articleFirst published November, 2017

Jason C. Travers, Bryan G. Cook, Lysandra Cook

Learning Disabilities Research & Practice

Restricted accessReview articleFirst published May, 2011

John K. Kruschke

Perspectives on Psychological Science

Open accessResearch articleFirst published September, 2022

Valentin Amrhein, Sander Greenland

Journal of Information Technology

Restricted accessResearch articleFirst published 1993

Mark Levene, George Loizou

Fundamenta Informaticae

Restricted accessResearch articleFirst published August, 2007

Seunghyun Im

Fundamenta Informaticae

Restricted accessResearch articleFirst published February, 2008

Raymond Hubbard, R. Murray Lindsay

Theory & Psychology

Restricted accessResearch articleFirst published April, 2023

Nicholas Lyon

Comparative Political Studies

Restricted accessResearch articleFirst published November, 1994

Robert Rosenthal, Donald B. Rubin

Psychological Science

Free accessResearch articleFirst published June, 2018

John K. Kruschke

Advances in Methods and Practices in Psychological Science