Clinical-Disaster Research Center

The University of Mississippi

Graduate Students

Matt TkachuckMathew A. Tkachuck

On Internship

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M.A., Clinical Psychology, University of Mississippi, 2016

B.S., Psychology, University of Washington, 2009

Mathew’s research interests include scale development of clinically applicable and culturally-oriented measures of active military post-deployment and veteran readjustment as well as mental health intervention program development in military settings more broadly. Mathew has presented research at the 2011 and 2012 Association for Behavioral and Cognitive Therapies Conferences as well as the 2015 and 2016 Association for Contextual Behavioral Sciences Conference.

Mathew is currently completing his 2018-2019 predoctoral internship at the George E. Wahlen Veterans Affairs Salt Lake City Health Care System.


Lauren WeathersLauren N. Weathers

On Internship

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M.A., Experimental Psychology, Western Kentucky University, 2013

B.A., Psychology, Queens University of Charlotte, 2011

Lauren’s research interests include exploring the relationship between meaning in life, resilience, and posttraumatic growth. She is also interested in understanding how these concepts affect psychological and health factors. She is the recipient of the Experimental Psychology Student of the Year Award (Western Kentucky University, 2013). She has presented at multiple conferences throughout her time in the lab (View poster from ABCT 2016).

Lauren is currently completing her 2018-2019 predoctoral internship at the Central Texas Veterans Health Care System in Austin, TX.


Marci C. Weber

5th year

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M.A., Clinical Psychology, University of Mississippi, 2016

B.S., Psychology, Sewanee: The University of the South, 2013

Marci’s research interests include disaster trauma and positive psychology with children and adolescents. She is particularly interested in self-efficacy and collective efficacy. In 2013, Ms. Weber graduated summa cum laude from The University of the South in Sewanee, TN, with a Bachelor of Science in Psychology. She has presented a poster at the International Positive Psychology Association in conjunction with other lab members in 2017 (View Poster from IPPA 2017) and has co-hosted an interest group involving campus violence and student preparedness with members of the lab at the 2018 Southeastern Psychological Association conference in Charleston, SC. She also presented at the 2018 ResilienceCon held in Nashville, TN (View PowerPoint from ResilienceCon 2018).


Lavina Y. Ho

4th year

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M.A., Clinical Psychology, Pennsylvania State University, 2014

B.A., Psychology, University of California, Irvine, 2012

B.A., Anthropology, University of California, Irvine, 2012

Lavina was a Bunton-Waller Fellow and granted the Outstanding Graduate Student Award while completing her Master’s degree at Penn State Harrisburg. Lavina served as an adjunct instructor at Penn State Harrisburg and Harrisburg Area Community College from 2014-2015. Her research interests focus on sexual assault, multiculturalism, and psychology and the law. She co-hosted an interest group involving campus violence and student preparedness with members of the lab at the 2018 Southeastern Psychological Association conference in Charleston, SC. She served as Vice-President of the Registered Student Organization on campus, Autism Speaks U – Ole Miss from 2015-2018.


Alexis K. Liberto

4th year

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M.A., Experimental Psychology, St. John’s University, 2015

B.A., Psychology, Hawai`i Pacific University, 2012

Alexis’ research interests include forensic psychology and neuropsychology. She would like to continue her research involving the adolescence population. She is currently researching how constructs of meaning in life and executive functioning may overlap and/or contribute to one another. Alexis presented a poster related to the construction of the Impact of Events Scale-8 and the DMS-5 at the 2017 International Society for Traumatic Stress Studies Annual Meeting in Chicago, IL. (View Poster from ISTSS 2017) She served as President of the Registered Student Organization on campus, Autism Speaks U – Ole Miss from 2015-2018.


Jeffrey M. Pavlacic

2nd year

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B.S., Psychology, Missouri State University, 2017

Jeff is interested in the longitudinal examination of values-based behavior and experiential avoidance strategies. His master’s thesis employs longitudinal analytic methods (i.e., multilevel modeling) to predict daily values-based behavior from various constructs theorized to perpetuate psychopathology, such as alcohol use and experiential avoidance. Additionally, he is interested in using multi-group factor-analytic techniques to determine whether item delivery method (i.e., randomization) affects factor structure for scales employing questions related to suicide. Jeff is also looking at incorporating newer meta-analytic techniques to examine the effectiveness of various forms of evidence-based treatment (i.e., Expressive Writing, Written Exposure Therapy, Prolonged Exposure, and Cognitive Processing Therapy) in a VA setting.  He presented a poster related to the effects of expressive writing on traumatic stress, posttraumtic growth, and quality of life at the 2018 Applied Behavioral Analysis conference in San Diego, CA (View Poster from ABAI 2018).


Mikaela J. Raley

1st year

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M.S., Psychological Science, University of North Florida, 2017

B.A., Psychology, University of North Florida, 2015

While at UNF, Mikaela served as lab coordinator for the Health Psychophysiology Lab from 2015-2018 and as a teaching assistant and guest lecturer from 2016-2017. Her clinical experience includes a year-long Clinical Health Psychology Internship at Mayo Clinic and working in a Private Practice in Jacksonville, Florida from 2016-2018. Mikaela has presented research at the 2016 Association for Psychological Science and 2017 Southeastern Psychological Association Conferences. Her research interests include PTSD, secondary trauma, social connectedness, and resilience in the military population.