Association for Behavior Analysis India. (January 01, 2009 – Present).
MidAmerican Association for Behavior Analysis. (2005 – Present).
President, Texas Association for Behavior Analysis. (September 01, 2000 – Present).
Chair, Experimental Analysis of Human Behavior Special Interest Group, Association for Behavior Analysis. (May 01, 2000 – Present).
Southeastern Association for Behavior Analysis. (August 25, 1993 – January 1, 2005).
Sigma Xi, The Scientific Research Society. (September 01, 1993 – August 31, 2000).
Association for Behavior Analysis International. (May 01, 1987 – April 30, 1999).
Texas Association for Behavior Analysis. (March 01, 1987 – August 31, 1993).
Other,"Swallowing and surface electromyography," Behavior Analysis. (2019 – Present).
Major Professor, Behavior Analysis. (2019).
Major Professor, Behavior Analysis. (2019).
Major Professor, Behavior Analysis. (2019).
Major Professor,"A behavioral analysis of the Stroop effect," Behavior Analysis. (2019).
Major Professor,"Contingency Management of Physical Rehabilitation: The Role of Feedback," Behavior Analysis. (2018).
Major Professor,"A Comparison of Fixed and Variable Ratio Token Exchange Production Schedules with Children with Autism Spectrum Disorder," Behavior Analysis. (2018).
Other, Behavior Analysis. (2018).
Major Professor,"The Effects of Differential Outcomes on Audio-Visual Conditional Discrimination in Children with ASD," Behavior Analysis. (2017).
Major Professor,"Can Observation Predict Performance in Conditional Discriminations?," COE Autism Center. (2016).
Major Professor,"Interactions between equivalence classes and equivalence relations," Behavior Analysis. (2016).
Other,"Real-time assessment of discrimination indices - READi," Behavior Analysis. (2016).
Major Professor,"Do Contingency Conflicting Elements Drop Out Of Equivalence Classes? Re-Testing Sidman's (2000) Theory," Behavior Analysis. (2015).
Ortu, D. (Author), Vaidya, M. (Author & Presenter), Association for Behavior Analysis International Annual Conference, Do Equivalence Relations have Linguistic Properties? Behavioral and Neurophysiological Correlates of Emergent Symmetry, San Antonio, United States of America. (2015).
Committee Member, Advising Council Committee. (August 2020 – April 2021).
Chairperson, Concentration in HSR Doctoral Program. (2017 – 2018).
Member, SACS-COC QEP Committee. (2015 – 2016).
Member, Faculty Senate. (September 2009 – August 2015).
Member, Committee to Revise Promotion and Tenure policy. (2013 – 2014).
Editorial Review Board Member, Journal of the Experimental Analysis of Behavior. (2015 – 2018).
Chairperson, Experimental Analysis of Human Behavior SIG - ABAI. (2011 – 2017).
Editor, Journal Editor, Experimental Analysis of Human Behavior Bulletin. (2009 – 2017).
Editorial Review Board Member, The Psychological Record. (2012 – 2015).
Editorial Review Board Member, The Behavior Analyst. (2009 – 2012).