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Dr. Jennifer Knack

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Dr. Jennifer M. Knack
Assistant Professor
Psychology Department
169 Science Center
PO Box 5825
Potsdam, NY 13699-5825 

Phone: 315-268-4315
Fax: 315-268-7118
Email: jknack@clarkson.edu

Education
Ph.D., The University of Texas at Arlington, 2009
 
Courses Taught
Introduction to Psychology, Developmental Psychology, Health Psychology, Child Psychology, Social Psychology 


Research Interests
My main program of research examines the broad construct of social pain and its relation with physical pain. Social pain is a term used to describe the affective pain component when actual or perceived damage occurs in interpersonal relationships. Within the broader construct of social pain, I am especially interested in peer victimization (e.g., being bullied or ostracized) and its influence on physical and psychological health. According to the Social Overlap Theory, the neural substrates of social and physical pain overlap (e.g., Eisenberger & Lieberman, 2005; MacDonald & Leary, 2005); my research tests whether this overlap may explain why people who are bullied report more physical health problems than those who are not bullied. I hypothesize that the social stress of being peer victimized alters biological processes which, in turn, leads to poorer health. Moreover, I explore possible protective factors (e.g., social support, friendships) as well as alternative explanations for the link between peer victimization and poor health such as individual differences (e.g., Big Five, rejection sensitivity, need to belong). In addition, I also examine the impact of recalling memories of social versus physical pain on self-regulation and use of indirect aggression. I am also interested in concepts such as self-regulation, aggression, friendship processes, and personality. To address these questions, my research draws from several disciplines of psychology including social, developmental, personality, health, and social neuroscience.

 Publications (last 5 years; * indicates student author)
Knack, J.M., Rex-Lear, M.,*Wormwood, A., & *Gibbons, A. (in press). Coping strategies and cognitive processes related to peer victimization and the role of intervention programs. In Bullying: Prevalence, Psychological Impacts, and Intervention Strategies. NOVA Publishers.  

Jensen-Campbell, L.A., Iyer, P., & Knack, J.M. (2014). Interpersonal traits. In M.Mikulincer & P.R.Shaver (Eds.), APA Handbook of Personality and Social Psychology, Volume IV: Personality Processes and Individual Differences.  

Knack, J.M., Vaillancourt, T., Krygsman, A., Arnocky, S., Vitoroulis, I., Hepditch, J., & Blain-Arcaro, C. (2014). Peer victimization: Understanding the developmental correlates of at-risk children and youth. In J.A. Burack, & L.A. Schmidt (Eds).  Cultural and Contextual Perspectives on Development At-risk.  (pp. 107 – 126). New York: Cambridge University Press. 

Arnocky, S., *Ribout, A., Mirza, R., & Knack, J. M. (2014). Perceived mate availability influences intrasexual competition, jealousy, and mate guarding behavior. Journal of Evolutionary Psychology, 12, 45–64. doi: 10.1556/JEP.12.2014.1.3 

Knack, J.M., Arnocky, S., *Lawton, C., *Wallace, M., & *Sussman, J. (2013). School bullying and health problems: A developmental examination of predictive and protective factors and coping strategies. In K. Dekker & M. Dijkstra (Eds.), School Bullying: Predictive Factors, Coping Strategies, and Effects on Mental Health (pp. 147 – 167). New York: NOVA Publishers. ISBN: 978-1-62808-809-0. 

Knack, J.M., Jacquot, C., Jensen-Campbell, L.A., & Malcolm, K.T. (2013). The importance of having agreeable friends (especially when you are not). Journal of Applied Social Psychology, 43, 2401-2413. doi: 10.1111/jasp.12188 

Rex-Lear, M., Knack, J.M., & Jensen-Campbell, L.A. (2012). Beyond the playground: Bullying in the workplace and its relation to mental and physical health outcomes. In R.J.Gatchel & I.Z Schultz (Eds). Handbook of Occupational Health and Wellness: Handbooks in Health, Work, and Disability. (pp. 219-240). New York: Springer. doi 10.1007/978-1-4614-4839-6_11 

Knack, J.M. & Vaillancourt, T. (2012). Evidence of altered cortisol levels across child maltreatment, intimate partner abuse, and peer victimization. In A.N. Hutcherson (Ed), Psychology of Victimization (pp. 205 – 218). Hauppauge, NY: NOVA Publishers. ISBN: 978-1-61470-505-5 

Knack, J.M., Tsar, V., Vaillancourt, T., Hymel, S., & McDougall, P. (2012). What protects rejected adolescents from also being bullied by their peers? The moderating role of peer-valued characteristics. Journal of Research on Adolescence, 22, 467-479. doi: 10.1111/j.1532-7795.2012.00792.x 

Knack, J.M., Iyer, P.A., & Jensen-Campbell, L.A. (2012). Not simply “in their heads:” Being bullied predicts health problems above and beyond known individual differences associated with victimization and health. Journal of Applied Social Psychology, 42, 1625-1650. doi: 10.1111/j.1559-1816.2012.00898.x 

Knack, J.M., Jensen-Campbell, L.A., & Baum, A. (2011). Worse than Sticks and Stones? Bullying is linked with altered HPA axis functioning and poorer health. Brain and Cognition, 77, 183-190. doi: 10.1016/j.bandc.2011.06.011 

Jensen-Campbell, L.A., Knack, J.M., & Gomez, H. (2010). The psychology of nice people. Social and Personality Psychology Compass, 4, 1042-1056. 

Knack, J.M., Gomez, H., & Jensen-Campbell, L.A. (2010). Bullying and its long-term health implications. In G. MacDonald & L.A. Jensen-Campbell (Eds.), Social Pain: Neuropsychological and health implications of loss and exclusion (pp. 215-236). Washington, DC: American Psychological Association. 

Jensen-Campbell, L.A., Knack, J.M., Waldrip, A.M., & Ramirez, M. (2009). Personality and effortful control processes in peer victimization. In. M.J. Harris (Ed.), Bullying, Rejection, and Peer Victimization: A Social Cognitive Neuroscience Perspective. (pp. 103 -124). Springer Publishing Company. ISBN: 978-0826103789 

Jensen-Campbell, L.A., Knack, J.M., & Rex-Lear, M.  (2009). Personality and social relationships.  In P. J. Corr & G. Matthews (Eds.), Handbook of personality.  Cambridge University Press. 

Knack, J.M. & Jensen-Campbell, L.A. (2009). Effects of Conscientiousness on Relationships. In Harry T. Reis & Susan Sprecher (Eds.), Encyclopedia of Human Relationships. Thousand Oaks, CA: SAGE Publications. 

Jacquot, C. & Knack, J.M. (2009). Gender Differences in Depression. In O’Brien, J. (Ed.), Encyclopedia of Gender and Society.  Thousand Oaks, CA: SAGE Publications. 

Presentations at Scientific Meetings (Last 5 years)
Knack, J.M. (Symposium chair; March, 2014). Examining how neuroendocrine functioning explains the link between peer victimization and poor mental and physical health. Symposium presented at the biennial meeting of the Society for Research in Adolescence, Austin, Texas. Contributors included: Priya A. Iyer, Lauri A. Jensen-Campbell, Allyson Arana, Jennifer M. Knack, *Jamie Nassar, and Jennifer L. Ball.  

Knack, J.M. & *Nassar, J. (March, 2014). Short and long term effects of peer victimization on diurnal and reactivity cortisol levels. Presented at the biennial meeting of the Society for Research in Adolescence, Austin, Texas. 

*Morales, M., *Pasquariello, K.Z., & Knack, J.M. (March, 2014). Examining the interaction between forgiveness and type of pain memory on indirect aggression. Poster presented at the annual meeting of the Eastern Psychological Association, Boston, MA. 

*Popsie, C., *Cook, M., & Knack, J.M. (March, 2014). PTSD symptoms mediate the relationship between peer victimization and physical health in college students. Poster presented at the annual meeting of the Eastern Psychological Association, Boston, MA. 

*Nassar, J., *Morales, M., & Knack, J.M. (March, 2013). Examining the linguistic style used to recall past and current pain experiences. Poster presented at the annual meeting of the Eastern Psychological Association, New York City, NY. 

Knack, J.M., Towns, B.L., & *Artus, S. (April, 2013). The missing link: The role of PTSD symptoms in peer victimization and poor physical health. Poster presented at the bi-annual meeting of the Society for Research in Child Development, Seattle, WA.

Knack, J.M. (Symposium chair; 2012, April). Understanding the Relationship between Peer Victimization and Mental and Physical Health Problems. Symposium held at the biennial meeting of the Society for Research in Adolescence, Vancouver, Canada. Contributors to include: Jennifer M. Knack, Lauri A. Jensen-Campbell, Priya A. Iyer, Amanda Krygsma, Heather Brittain, Christine Blain-Arcaro, Steven Arnocky, Eric Duku, Patricia McDougall, and Tracy Vaillancourt.  

Knack, J.M. & Jensen-Campbell, L.A. (2012, April). Effects of peer victimization on cortisol reactivity and physical health reports differ by sex. Presented at the biennial meeting of the Society for Research in Adolescence, Vancouver, Canada. 

Knack, J.M., Ramirez, M., Jensen-Campbell, L.A., & Arnocky, S. (presented January, 2012). Global self-esteem buffers against negative effects of relationship-contingent self-esteem during partial social exclusion. Poster presented at the annual meeting of the Society of Personality and Social Psychology, San Diego, CA. 

Knack, J.M., Tsar, V., Hepditch, J., McDougall, P.A., Hymel, S.C., & Vaillancourt, T. (April, 2011). Peer rejection is not a certain path to peer victimization: The moderating role of peer-valued characteristics. Poster presented at the bi-annual meeting of the Society for Research in Child Development, Montreal, ON, Canada. 

Knack, J.M., Hepditch, J., Tsar, V., McDougall, P.A., Hymel, S.C., & Vaillancourt, T. (April, 2011). Examining negative outcomes of poor peer relations: Adolescents who are bullied and rejected are more socially withdrawn. Poster presented bi-annual meeting of the Society for Research in Child Development, Montreal, ON, Canada. 

Knack, J.M. (Symposium chair; 2010, July). Understanding social relationships by considering activation of the HPA axis. Symposium held at the biennial meeting of International Society for the Study of Behavioural Development, Lusaka, Zambia. Contributors included Jennifer M. Knack, Tracy Vaillancourt, Lauri A. Jensen-Campbell, Cameron Muir, Heather Brittain, Jamie Ostrov, Jean Clinton, Louis Schmidt, and Debra Pepler. 

Knack, J.M. & Vaillancourt, T. (2010, July). Morning cortisol levels moderate the link between peer victimization and physical health. Paper presented at the biennial meeting of International Society for the Study of Behavioural Development, Lusaka, Zambia. 

Knack, J.M. & Jensen-Campbell, L.A. (2010, July). Do personality differences moderate the link between peer victimization and health outcomes? Paper presented at the biennial meeting of International Society for the Study of Behavioural Development, Lusaka, Zambia. 

Knack, J.M. (Symposium chair; 2010, March). Effects of peer victimization on biological functioning and health. Symposium held at the biennial meeting of the Society for Research in Adolescence, Philadelphia, PA. Contributors included Lauri A. Jensen-Campbell, Priya Iyer, Madeline Rex-Lear, Wendy Kliewer, Ashley Engels Dibble, Terri Norton Sullivan, Kimberly Goodman, Jennifer M. Knack, and Tracy Vaillancourt. 

Knack, J.M. (2010, March). Effects of peer victimization on HPA axis activation and physical health reports. Paper presented at the Society for Research in Adolescence biennial meeting, Philadelphia, PA. 

Knack, J.M. & Vaillancourt, T. (2010, July). Moderating effects of victimization and sex in the link between change in daily cortisol and poor physical health. Poster presented at the annual International Society for Research in Aggression World Conference in Storrs, Connecticut. 

Knack, J.M. & Vaillancourt, T. (2010, May). Moderating effects of victimization and sex in the link between change in daily cortisol and poor physical health. Poster presented at the 5th Annual PREVNet conference in Hamilton, ON. 

Knack, J.M., Thompson, J.A., & Jensen-Campbell, L.A. (2010, January). Worse than sticks and stones? Bullying is linked with altered HPA axis functioning and poorer health. Poster presented at the annual meeting for Society of Personality and Social Psychology in Las Vegas, Nevada. 

Rex-Lear, M., Knack, J.M., Iyer, P., & Jensen-Campbell, L.A. (2010, January). Does being bullied influence cognitive performance? Poster presented at the annual meeting for Society of Personality and Social Psychology in Las Vegas, Nevada. 

Batto, L., Knack, J.M., & Jensen-Campbell, L.A. (2010, January). Can being bullied lead to substance use in adolescence? Poster presented at the annual meeting for Society of Personality and Social Psychology in Las Vegas, Nevada. 

Iyer, P.A., Knack, J.M., & Jensen-Campbell, L.A. (2010, January). Not simply “in their heads:” Being bullied predicts health problems above and beyond known individual differences associated with health. Poster presented at the annual meeting for Society of Personality and Social Psychology in Las Vegas, Nevada. 

Jensen-Campbell, L.A. & Knack, J.M. (2009, June). The Influence of Peer Victimization on Biological Functioning. Paper presented at the Interamerican Congress of Psychology, Guatemala City, Guatemala. 

Knack, J.M., Thompson, A.; Gonzalez, A., Aikman, A., Anderson, K., Kuchta, A., Iyer, P., & Jensen-Campbell, L.A. (2009, April). The influence of peer victimization on biological systems and health outcomes. Poster presented at the bi-annual meeting of the Society for Research in Child Development, Denver, CO. 

Knack, J.M., Gomez, H., Rex-Lear, M., & Jensen-Campbell, L.A. (2009, April). Neural correlates of victimization and support: An fMRI study of social exclusion. Poster presented at the bi-annual meeting of the Society for Research in Child Development, Denver, CO. 

Knack, J.M., Thompson, A., Ziegler, S.L., Cioffi, P.E., Kutcha, A., Celis-de Hoyos, Wilkerson, L., Aikman, A., Iyer, P, & Jensen-Campbell, L.A. The influence of peer victimization on biological systems and health outcomes. Poster presented at the annual Metroplex Day, Arlington, TX. 

Knack, J.M, Thompson, Aubrey, Aikman, A., Gonzalez, A., Anderson, K., & Jensen-Campbell, L.A. (2009, February). The influence of peer victimization on biological systems and health outcomes. Poster presented at the annual meeting of the Society of Personality and Social Psychology, Tampa, FL. 

Invited Colloquiums/Talks
Knack, J.M. (May, 2014). Sticks and Stones: Examining Why Being Bullied is Associated with Poor Physical Health. Invited presentation for the spouses of the Board of Trustees, Clarkson University, Potsdam, NY. 

Knack, J.M. (March, 2014). Examining the Negative Physical Health Effects of Being Bullied. Invited presentation at the University of Maine, Maine. 

Knack, J.M. (March, 2014). How does being bullied make us sick? Invited presentation at the Science Café, Potsdam and Canton, NY. 

Knack, J.M. (August, 2012). Bullying and student health: Why bullying is an important topic for teachers. Invited presentation at SUNY Potsdam, Potsdam, NY. 

Knack, J.M. (February, 2012). And words will never hurt you? Using a biopsychosocial model to examine the relationship between being bullied and poor physical health. Invited colloquium at Nipissing University, North Bay, Canada. 

Student Presentations (Last 5 years; * indicates student author)
Knack, J.M. &*Nassar, J. (March, 2014). Short and long term effects of peer victimization on diurnal and reactivity cortisol levels. Presented at the biennial meeting of the Society for Research in Adolescence, Austin, Texas. 

*Morales, M.,*Pasquariello, K.Z., & Knack, J.M. (March, 2014). Examining the interaction between forgiveness and type of pain memory on indirect aggression. Poster presented at the annual meeting of the Eastern Psychological Association, Boston, MA. 

*Popsie, C., *Cook, M., & Knack, J.M. (March, 2014). PTSD symptoms mediate the relationship between peer victimization and physical health in college students. Poster presented at the annual meeting of the Eastern Psychological Association, Boston, MA. 

*Granger, L., *Siegfried, E., *Fowler, M., *Gibson, K., *Marrott, J., Fowler, K., & Knack, J.M. (July, 2014). Design and assessment of a STEM mentoring program for geographically isolated students. Poster presented at 17th Annual Symposium on Undergraduate Research Experience (SURE), Clarkson University, Potsdam, NY. 

*Gibbons, A. & Knack, J.M. (July, 2014). The effects of peer victimization on memory. Poster presented at 20th Annual McNair Research Conference, University of Buffalo, Potsdam, NY. 

*Gibbons, A. & Knack, J.M. (July, 2014). The effects of peer victimization on memory. Poster presented at 17th Annual Symposium on Undergraduate Research Experience (SURE), Clarkson University, Potsdam, NY.

Wormwood, A., *Wilder, S., & Knack, J.M. (July, 2014). Peer victimization, mental health, and cognitive processing. Poster presented at 20th Annual Undergraduate Research Conference, University of Buffalo, Buffalo, NY.

*Wormwood, A., *Wilder, S., & Knack, J.M. (July, 2014). Peer victimization, mental health, and cognitive processing. Poster presented at 17th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Morales, M., *Pasquariello, K., & Knack, J.M. (April, 2014). Forgive and Forget: Examining the Interaction Between Forgiveness and Type of Pain Memory on Indirect Aggression and Threatened Psychological Needs. Poster presented at the 22nd Annual CSTEP Conference at Sagamore, Lake George, NY.

*Pasquariello, K. & Knack, J.M. (April, 2014). Preliminary evidence that recalling pain memories affect self-regulation. Presentation presented at 16th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Romano, T. & Knack, J.M. (April, 2014). Forgive and forget: Examining the interaction between forgiveness and type of pain memory on indirect aggression and threatened psychological needs. Presentation presented at 16th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Shafer, S., *Hennessey, C., & Knack, J.M. (April, 2014).Relationships between perceived stress, salivary cortisol levels, and physical health. Presentation presented at 16th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Williams, S., *Sharlow, B., & Knack, J.M. (April, 2014).Effects of social stressors and self-regulating tasks on blood glucose. Poster presented at 16th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Wormwood, A., *Wilder, S., & Knack, J.M. (April, 2014). Does intuition predict poorer mental health in people who are bullied?. Poster presented at 16th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Nassar, J., *Morales, M., & Knack, J.M. (March, 2013). Examining the linguistic style used to recall past and current pain experiences. Poster presented at the annual meeting of the Eastern Psychological Association, New York City, NY.

Knack, J.M., Towns, B.L., & *Artus, S. (April, 2013). The missing link: The role of PTSD symptoms in peer victimization and poor physical health. Poster presented at the bi-annual meeting of the Society for Research in Child Development, Seattle, WA.

*Nassar, J. & Knack, J.M. (April, 2013). Effects of peer victimization during an acute social stressor. Presentation presented at 14th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Sussman, J. & Knack, J.M. (April, 2013). Salivary cortisol levels mediate the effects of peer victimization on physical health. Poster presented at 14th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

Rebhun, J. & Knack, J.M. (April, 2013). Effects of intimate partner violence on cognitive performance. Poster presented at 14th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Steele, M.J. & Knack, J.M. (April, 2013). Effects of peer victimization on cognitive performance. *Poster presented at 14th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Morales, M. & Knack, J.M. (March, 2013). Examining the linguistic style used to recall past and current pain experiences. Poster presented at the 21st Annual CSTEP Conference at the Sagamore, Lake George, NY.

*Nassar, J., *Morales, M., & Knack, J.M. (March, 2013). Examining the linguistic style used to recall past and current pain experiences. Poster presented at the annual meeting of the Eastern Psychological Association, New York City, NY.

*Morales, M. & Knack, J.M. (August, 2012). Effects of recalling social and physical pain experiences on self-regulation, mood, and psychological needs. Presentation presented at 14th Annual Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Morales, M. & Knack, J.M. (July, 2012). Effects of recalling social and physical pain experiences on self-regulation, mood, and psychological needs. Poster presented at McNair Research Conference, Buffalo, NY.

*Cholhan, L. & Knack, J.M. (April, 2012). Effects of social stress on cognitive performance.  Presented at the Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

*Artus, S. & Knack, J.M. (April, 2012). Stressed and sick? Examining whether social stressors predict symptoms of metabolic syndrome.  Presented at the Symposium on Undergraduate Research Experiences (SURE), Clarkson University, Potsdam, NY.

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