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William  Chopik - Michigan State University. East Lansing, MI, US

William Chopik William  Chopik

Assistant Professor | Michigan State University


Expert in social behaviors and individual differences and relationships.


Bill Chopik, a social/personality psychologist, studies how relationships -- and the people in them -- change over time and across situations. He focuses on how factors both inside (biological, hormonal) and outside (social roles, geography) of people influence their approach to social relationships. In 2016, Chopik was named one of Forbes' "30 Under 30 in Science"; and in 2015, he was named one of the "30 Top Thinkers Under 30" in Pacific Standard magazine.

Industry Expertise (4)


Writing and Editing

Mental Health Care


Areas of Expertise (8)


Romantic Relationships

Lifespan Development


Close Relationships




Accomplishments (1)

30 Top Thinkers Under the Age of 30


Education (1)

The University of Michigan, Ann Arbor: Ph.D. 2015

Affiliations (1)

  • Society for Personality and Social Psychology (SPSP)

News (5)

7 Major Fights That All Working Parents Will Have at Some Point

Fatherly  online


ibll Chopik, the director of Michigan State University’s Close Relationships Lab says that it’s important to actively listen and validate each other’s feelings. If your partner says that they received a promotion at work, tell them how happy you are for them and remind them that the promotion came because of the great person that they are.

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7 Habits of People Who Make Friends Easily

SheKnows  online


Whether you’re at a party, waiting in a dressing room line or taking your kid to the playground, talking to the people around you guarantees you’ll at least have a conversation — which could lead to a friendship. “Reaching out to others is a necessary first step to making new friends,” Dr. William Chopik, a social-personality psychologist and assistant professor at Michigan State University, tells SheKnows. “Some of the most superficial relationships — which later grow into more meaningful ones — start with people sharing basic interests, hobbies, opinions or aspirations. You won't know any of these things without first talking to people.”

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Perceptions of Old Age Change as We Age

MSU Today  


“I find it interesting that there’s a ton of people who have skewed perceptions about aging – mostly young adults,” said William Chopik, assistant professor of psychology and principal investigator of the research...

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Discrimination Harms Your Health – and Your Partner’s

MSU Today  


“We found that when an individual experiences discrimination, they report worse health and depression. However, that's not the full story – this stress spills over and affects the health of their partner as well,” said William Chopik, an assistant professor of psychology who conducted the study with current and former MSU students...

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U.S. among the top 10 countries for empathy: study

New York Daily News  


"We linked the responses of people from all different countries to our measure of empathy," lead author William Chopik, an assistant professor of psychology at MSU, tells the Daily News. He looks at America's top 10 rank with guarded optimism. Previous studies have shown a downward trend in empathy in the U.S. Social media, increases in violence and changing family practices will all make an impact. These new findings, he says, are a "snapshot of what empathy looks like right now." Stay tuned...

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Journal Articles (3)

Changes in adult attachment styles in American college students over time: A meta-analysis Personality and Social Psychology Review

Sara H Konrath, William J Chopik, Courtney K Hsing, Ed O’Brien


The current article examines changes over time in a commonly used measure of adult attachment style. A cross-temporal meta-analysis was conducted on 94 samples of American college students (total N = 25,243, between 1988 and 2011) who chose the most representative description of four possible attachment styles (Secure, Dismissing, Preoccupied, and Fearful) on the Relationship Questionnaire. The percentage of students with Secure attachment styles has decreased in recent years (1988: 48.98%; 2011: 41.62%), whereas the percentage of students with Insecure attachment styles (sum of Dismissing, Preoccupied, Fearful) has increased in recent years (1988: 51.02%; 2011: 58.38%). The percentage of students with Dismissing attachment styles has increased over time (1988: 11.93%; 2011: 18.62%), even after controlling for age, gender, race, and publication status. Positive views of others have declined across the same time period. We discuss possible implications and explanations for these changes.

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From the cradle to the grave: Age differences in attachment from early adulthood to old age Journal of Personality

William J Chopik, Robin S Edelstein, R Chris Fraley


Although attachment dynamics are thought to be important across the life span, relatively few studies have examined attachment processes beyond young adulthood. Extant research on age differences in attachment orientation has yielded conflicting results and interpretations. The purpose of this study was to provide a more complete picture of age‐related differences in attachment anxiety and avoidance.

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Sociosexuality moderates the association between testosterone and relationship status in men and women Hormones and Behavior

Robin S Edelstein, William J Chopik, Emily L Kean


Single individuals typically have higher testosterone compared to those who are partnered, suggesting that individual differences in testosterone are associated with mating effort, or people's motivation to find a sexual partner. However, there is less consistent evidence for links between testosterone and sociosexuality, or people's orientation toward uncommitted sexual activity. Based on Penke and Asendorpf's (2008) conceptualization, we propose that a more nuanced measure of sociosexuality may reveal more robust associations with testosterone. In the current study, we assessed relations between three components of sociosexuality—desire, behavior, and attitudes—and endogenous testosterone levels in men and women. We found that partnered status was indeed associated with lower testosterone in both men and women, but only among those who reported more restricted sociosexuality. Partnered men who reported greater desire for uncommitted sexual activity had testosterone levels that were comparable to those of single men; partnered women who reported more frequent uncommitted sexual behavior had testosterone levels that were comparable to those of single women. These findings provide new evidence that people's orientations toward sexual relationships, in combination with their relationship status, are associated with individual differences in testosterone. The current results are also among the first to demonstrate sociosexuality–testosterone associations in both men and women, and they reveal that the nature of these associations varies by gender. Together, these findings highlight the utility of a multifaceted conceptualization of sociosexuality and the implications of this conceptualization for neuroendocrine processes.

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