A new study by the Boston College School of Social Work cites violence as the most significant threat to the personal safety of emerging adults—those 18 to 29 years old—in Massachusetts.

Complicating this threat are disparities by gender, ethnicity, and geographical location, which must be addressed through community-based violence prevention and intervention efforts, according to researchers in 51SSW’s Racism-Based Violence Injury & Prevention Lab.

Robert Motley, Jr.

Robert Motley, Jr. (Photo by Caitlin Cunningham)

“Without such efforts, we stand to lose generations of future leaders and contributors to our society due to premature death or debilitating mental illness,” the co-authors write.

Produced using publicly available data, “” is the first comprehensive report on the prevalence of interpersonal and self-directed violence—such as homicide, suicide, drug abuse, police-involved incidents, and self-injury—among the state’s emerging-adult population, said Assistant Professor Robert Motley Jr. , the lab’s director and principal investigator for the study.

“It not only sheds light on the violence that emerging adults in Massachusetts experience but provides community-based mental and behavioral health organizations and policy leaders with the locale of where the violence is most prominent,” he added. “These findings should inform policy and preventive/interventive methods targeted in these geographic areas to reduce the prevalence and deleterious impact of violence on the health and well-being of emerging adults residing in these specific locations.”

Lab members who co-authored the study with Motley were Rebekah Siddiqi, Awanti Acharya, Eric Williamson, Danielle T. Walker, and Kaycee L. Bills.

The impact of violence on Massachusetts emerging adults mirrors many national trends, the RB-VIP study notes: Among its findings is that emerging-adult males experience considerably higher rates of homicides than females in the same group, and Black emerging adults account for higher rates of homicides than their counterparts from other ethnic groups. The report also found disproportionate rates of police contacts and police use of both lethal and non-lethal force involving Black emerging adults in Massachusetts, while white emerging adults account for most suicides in Massachusetts.

These incidents of violence do not occur equally across the state, the RB-VIP team notes. For example, the homicide rate among emerging adults during 2015-2019 was greatest in Suffolk and Hampden counties (in a range of 40.58 to 88.58 per 100,000), compared to Hampshire, Middlesex, and Norfolk (0.01 to 10.62). Barnstable County recorded the highest rate of suicide among emerging adults (70.46 to 133.96 per 100,000) during 2010-2014 and 2015-2019; Plymouth County showed a persistent rate of 56.8 to 70.4 suicides per 100,000 emerging adults during both periods, while Middlesex, Suffolk, and Norfolk saw a rate of 0.01 to 45.10.

Plymouth, Barnstable, and Bristol counties also had the highest rates of emergency department visits for non-fatal drug overdoses—2,507 to 3,755 per 100,000—among emerging adults from 2016-2019.

"The goal is to present the findings to leaders of community and college/university-based mental and behavioral health organizations, policy, and law enforcement agencies in the locations where we see the highest rates of interpersonal and self-directed violence, in an effort to augment dialogue and strategic planning to address the issues we have documented.”
School of social work assistant professor robert motley, jr., principal investigator of RB-VIP Lab


As part of their examination of both fatal and non-fatal incidents involving police, the researchers used GIS technology to create a visual map showing the incidence of non-fatal police contacts across Boston neighborhoods. Data on the map revealed that Beacon Hill, Longwood, Mission Hill, and parts of Roxbury and Dorchester had the highest number of police contacts for Black, white, and Hispanic emerging adults. In Boston overall, Black emerging adults accounted for 80.7 percent of 36,359 reported police contacts involving use of non-lethal force during 2015-2019, compared to white (17.2) and Hispanic (2.1). More men (92 percent) than women reported experiencing a police contact.

Accordingly, Motley said the lab plans to share the report where it may have the most impact. “The goal is to present the findings to leaders of community and college/university-based mental and behavioral health organizations, policy, and law enforcement agencies in the locations where we see the highest rates of interpersonal and self-directed violence, in an effort to augment dialogue and strategic planning to address the issues we have documented.”

Emerging adulthood is a relatively recent addition to the developmental life stages used as a reference tool by researchers and practitioners in psychology, social work, and related fields. It was proposed by psychologist Jeffrey Jensen Arnett in 2004, based on his series of interviews with 18- to 29-year-olds during the late 1990s, and reflecting major societal changes that occurred in the 1960s and 1970s, including technology advancements and expanded roles for women. The term describes a period marked by instability, the transition from adolescence, identity exploration, and perceived possibilities in the areas of love, education, and work. Emerging adults, according to experts, take more time to complete their education, enter into marriage and parenthood later, and undergo a longer transition to stable work.

As the 51SSW researchers note, this stage of life may be especially unstable for emerging adults who identify as male and/or a member of an ethnic minority group, due to documented increases in the prevalence of violence exposure (interpersonal and self-directed) that pose a grave threat to the personal safety of this population.

“Emerging adulthood serves as a pathway for a healthy and stable transition to full adulthood,” said Motley. “However, factors such as exposure to violence, and mental and behavioral issues, as well as the lack of support and opportunity, can be barriers to a successful transition.”

Despite the work of front-line organizations seeking to address all forms of violence and its impact on emerging adults’ health and well-being, Motley said, “we need to evaluate our systems to ensure that we can better serve and protect the personal safety of our emerging-adult population and be willing to invest adequate resources in the areas where we are lacking. It is imperative that we develop and implement targeted policies, practices, and services that promote healthy development among emerging adults and overall personal safety.”

For more about the Racism-based Violence Injury & Prevention Lab, visit its website or follow the lab on Twitter: .

Sean Smith | University Communications | July 2022