Julia F. Hammett
San Diego State University
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Publication
Featured researches published by Julia F. Hammett.
Journal of Interpersonal Violence | 2016
Emilio C. Ulloa; Julia F. Hammett
Intimate partner violence (IPV) is a major public health concern. Previous studies have consistently shown that IPV is tied by to a variety of detrimental consequences for affected individuals, including negative mental health outcomes. However, the differential impact of gender and perpetrator–victim role (i.e., whether an individual is the perpetrator or victim of violence or both) remains largely understudied in the academic literature. Thus, the purpose of the present study was to describe a variety of mental health outcomes and risk behaviors among men and women experiencing no violence, perpetration-only, victimization-only, and bidirectional violence. Data from Waves 3 and 4 of the National Longitudinal Study of Adolescent Health (N = 7,187) were used. Participants provided information on their perpetrator–victim role and on a variety of factors related to mental health (depression, suicidality, alcohol use, illegal drug use, and relationship satisfaction). For all outcomes, prevalence and severity generally tended to be highest among individuals affected by bidirectional IPV and lowest among individuals not affected by any violence (independent of gender). The present findings highlight that IPV and negative mental health outcomes and risk behaviors should be addressed as co-occurring problems in research, prevention, and treatment. In addition, all gender-role combinations should be addressed to better understand and address all potential effects of IPV. According to the present findings, couples affected by bidirectional violence are at particularly high risk of developing mental health disorders. Thus, policy makers and clinicians should predominantly target couples as well as individuals who are not only the victims but also the perpetrators of IPV and pay particular attention to potential signs of mental health distress these individuals might exhibit.
Journal of Family Violence | 2015
Emilio C. Ulloa; Julia F. Hammett
This study examined the impact of temporal changes in intimate partner violence (IPV) on individuals’ romantic relationship. Analyses based on a sample of 8279 young adults from Waves III and IV of the National Longitudinal Study of Adolescent Health (Add Health) revealed that greater temporal increases in victimization were related to lower satisfaction. The association between increases in perpetration and satisfaction was not significant. Additionally, for women, greater increases in IPV perpetration were related to higher satisfaction. For men, the association between increases in perpetration and satisfaction was not significant. For both men and women, greater increases in victimization were related to lower satisfaction. Thus, temporal changes in IPV might have differing impacts on relationship satisfaction for men versus women.
Journal of Family Psychology | 2018
Julia F. Hammett; Benjamin R. Karney; Thomas N. Bradbury
Interventions aimed at reducing interpartner aggression assume that within-couple declines in aggression enhance individual and relational outcomes, yet reductions in aggression may fail to yield these benefits when other risk-generating mechanisms remain intact. The present study evaluates this possibility by investigating whether naturally observed within-couple changes in aggression are associated with improved individual and relational outcomes in the manner assumed by intervention programs. Drawing upon 4 waves of data collected at 9-month intervals from a community sample of 431 newlywed couples (76% Hispanic) living in low-income neighborhoods, Actor-Partner-Interdependence Modeling (APIM) and Structural Equation Modeling (SEM) indicated that levels of aggression at the outset of marriage had limited associations with later outcomes. Changes in aggression, however, were associated with subsequent marital outcomes, such that decreases in aggression were beneficial and increases in aggression were costly. Individuals who experienced increases in aggression worsened in their observed communication over time and reported greater increases in stress. Reports of stress early in marriage predicted escalations in aggression over time. Thus, helping couples to contain increases in aggression might be particularly consequential for their well-being.
Journal of Family Psychology | 2018
Hannah C. Williamson; Julia F. Hammett; Jaclyn M. Ross; Benjamin R. Karney; Thomas N. Bradbury
Despite evidence that empirically supported couple therapies improve marital relationships, relatively few couples seek help when they need it. Low-income couples are particularly unlikely to engage in relationship interventions despite being at greater risk for distress and dissolution than their higher-income counterparts. The present study aimed to clarify how premarital education influences couples’ progression through different stages of later help-seeking, as identified in prior research. Using 5 waves of self-report data from a sample of 431 ethnically diverse newlywed couples living in low-income neighborhoods, analyses revealed that wives who received premarital education later considered seeking therapy at a higher level of relationship satisfaction and lower level of problem severity than those who did not receive premarital education, though this was not true for husbands. Wives who received premarital education were also more likely as newlyweds to say that they would seek therapy if their relationship was in trouble, though husbands were not. Spouses who considered seeking therapy were more likely to follow through with participation if they had received premarital education, whereas if they had not received premarital education they were more likely to consider seeking therapy without following through. Similarly, among couples who received therapy, those who also received premarital education sought therapy earlier than those who did not receive premarital education, though not at a higher level of relationship satisfaction. Taken together, these results suggest that participation in premarital education is linked with later help-seeking by empowering couples to take steps throughout their marriage to maintain their relationship.
The Family Journal | 2017
Emilio C. Ulloa; Julia F. Hammett; Nicole A. Meda; Salvador J. Rubalcaba
This study employed a dyadic data analysis approach to examine the association between partners’ empathy and relationship quality among cohabitating couples. Data were collected from 374 cohabitating but nonmarried couples who were participants in the Wave 3 romantic pairs subsample of the National Longitudinal Study of Adolescent Health (Add Health). Men’s higher empathy was related to their own perceptions of better relationship quality and women’s higher empathy was related to their own as well as their partner’s perceptions of better relationship quality. These findings show that individuals’ abilities to be understanding, compassionate, and sympathetic may be related to the overall feeling of satisfaction and love in romantic relationships. The only effect that did not reach statistical significance was the partner effect from men’s empathy to women’s relationship quality. Although previous research with married couples has shown that men’s empathy may play a more important role in shaping couples’ perceptions of relationship quality, according to the current findings, these findings may not extend to cohabitating couples. The current results provide beneficial guidance to clinicians working with distressed, nonmarried couples.
Journal of Family Violence | 2016
Julia F. Hammett; Donna M. Castañeda; Emilio C. Ulloa
The present study examined individuals’ subjective evaluation of their effectiveness with regard to affective communication and problem-solving communication, and their relation to intimate partner violence (IPV) victimization. Data from 100 Caucasian American and Mexican American couples were collected during the first and during the third year of marriage. For affective communication, a significant partner effect emerged, indicating that husbands’ higher dissatisfaction with affective communication was related to wives’ higher IPV victimization. For problem-solving communication, a significant actor effect emerged, indicating that husbands’ higher dissatisfaction with problem-solving communication was related to husbands’ higher IPV victimization. While these findings largely generalized to Caucasian Americans, they did not generalize to Mexican Americans.
Journal of Interpersonal Violence | 2017
Julia F. Hammett; Justin A. Lavner; Benjamin R. Karney; Thomas N. Bradbury
Intimate partner aggression is common in dissatisfied relationships, yet it remains unclear whether intimate partner aggression is a correlate of relationship satisfaction, whether it predicts or follows from relationship satisfaction over time, or whether longitudinal associations are in fact bidirectional in nature. The present study evaluates these perspectives by examining self-reports of aggressive behaviors in relation to corresponding self-reports of relationship satisfaction among a sample of 431 low-income, ethnically diverse (76% Hispanic, 12% African American, 12% Caucasian) newlywed couples. Using a cross-lagged panel analysis, we examined associations between aggression and satisfaction across four time points, spaced by 9-month intervals, during the first 2.5 years of marriage. Cross-sectionally, less satisfied couples reported higher levels of intimate partner aggression. Longitudinally, aggression was a more consistent predictor of satisfaction than vice versa, though neither pathway was particularly robust: Intimate partner aggression was a significant predictor of relationship satisfaction at 4 of the 12 tested lags, whereas relationship satisfaction was a significant predictor of intimate partner aggression at only one of 12 lags. Because all effects were relatively weak and inconsistent, more specificity is needed to clarify circumstances under which aggression does and does not predict satisfaction, including whether the predictive power of the aggression-to-satisfaction association varies based on the severity of aggression or other individual (e.g., personality) or external (e.g., stress and environmental context) factors. Together, results indicate that dissatisfied couples are more likely to engage in intimate partner aggression, but being dissatisfied is unlikely to increase the level of aggression a couple engages in over time.
Psi Chi Journal of Psychological Research | 2016
Tenille C. Taggart; Julia F. Hammett; Emilio C. Ulloa
*Faculty mentor ABSTRACT. Hormone fluctuations due to menstruation may cause changes in mood. Oral contraceptives (OCs) stabilize hormone levels. Although inconsistent, some research has found OCs to have a positive impact on women’s mood and affect. Stable mood may in turn lead to positive overflow effects in a woman’s life as seen through increased romantic relationship satisfaction. The current study examined the association between OC use and relationship satisfaction. Data from Waves 3 and 4 of the National Longitudinal Study of Adolescent Health (Add Health) data set (N = 4,311 women) were used. Women ranged in age from 18 to 28 (M = 22.26, SD = 1.79) at Wave 3 and from 25 to 34 (M = 29.02, SD = 1.73) at Wave 4. Results indicated that women who used OCs at Wave 3 were more satisfied with their relationships at Wave 4 than women who did not use OCs, R 2 = .049, F(5, 4048) = 41.65, p < .001; β = .032, p = .041. These results suggest that hormones in OCs may have diffuse downstream effects in the lives of women who take them, including in their romantic relationship satisfaction. This highlights the importance of recognizing the primary and secondary implications of OC use and the need for both women and clinicians to understand the potential benefits of OCs in making informed treatment decisions. Oral Contraceptive Use Associated With Increased Romantic Relationship Satisfaction
Partner abuse | 2016
Emilio C. Ulloa; Julia F. Hammett
This study employed a dyadic data analysis approach to examine the association between partners’ dispositional empathy and intimate partner violence (IPV). Data were collected from 1,156 couples, who were participants in Wave 3 of the National Longitudinal Study of Adolescent Health (Add Health). For both IPV perpetration and IPV victimization, significant actor effects for men and significant partner effects for men to women emerged: Men who were less empathic were more likely to perpetrate IPV and to be victimized. Similarly, women whose men partners were less empathic were more likely to perpetrate IPV and to be victimized. Findings partially generalized to analyses assessing the associations between empathy and the different types of IPV (psychological, physical, sexual IPV, and occurrence of injury from IPV) separately. The present findings show that men’s levels of empathy may carry more weight in determining their own as well as their partners’ aggressive behaviors than do women’s levels of empathy.
Aggression and Violent Behavior | 2015
Emilio C. Ulloa; Julia F. Hammett; Monica L. Guzman; Audrey Hokoda