Examining contextual influences on the service needs of homeless and unstably housed domestic violence survivors

Abstract Domestic violence (DV) is a leading cause of homelessness for women, yet many DV agencies are just beginning to focus on helping clients stabilize their housing situations. The purpose of this study was to better understand the contexts and service needs of unstably housed and homeless DV survivors, to promote more efficient and successful service matching from DV agencies. We examined whether DV survivors could be grouped by particular features, histories, and contextual factors, and how these group differences impacted what they needed from DV agencies. The sample included 406 homeless and unstably housed DV survivors who had recently sought DV services. Latent class analysis supported the identification of four distinct classes: (1) highest disadvantages service seeker, (2) moderate disadvantages—criminal legal system service seeker, (3) moderate disadvantages service seeker, and (4) lower disadvantages service seeker. Additionally, we were able to profile each class, and test the types of services survivors in each class needed from agencies.

well-documented mental health needs, including high rates of posttraumatic stress disorder (PTSD), anxiety, severe depression, and suicide ideation, and services have been designed to achieve outcomes in those areas (Chandan et al., 2019;Sullivan, 2018). Having a better sense of how survivors' contexts and experiences coalesce to impact their service needs, as well as identifying the likely proportion of clients who may comprise each "category" of service need, may help service providers more effectively allocate their limited resources to best serve a wide range of survivors (Jahiel & Babor, 2007;Rog & Buckner, 2007). For example, one recent study, which involved surveying 577 homeless individuals about their service needs and barriers, used latent class analysis (LCA) to identify distinct groups of service seekers (Barile et al., 2020). As expected, people's service needs differed depending on the factors that contributed to their homelessness. Those who were homeless due exclusively to job loss-the largest grouping at 55% of the samplealso needed the fewest services. Those in the "disability/physical health class", on the other hand, were a much smaller group (4%) but comprised those needing the most services. While this study did not measure DV, and was comprised of primarily men, it illustrates the value of identifying factors related to service use.
Although few studies to date have examined the housing barriers and related service needs of DV survivors specifically, there is some evidence to suggest significant overlap between risk factors for DV and risk factors for homelessness. For example, people with disabilities are at increased risk for DV victimization (Breiding & Armour, 2015) as well as homelessness (Curtis et al., 2014). People of Color are also at greater risk than are their White counterparts for experiencing both DV (Breiding et al., 2014) and homelessness (Olivet et al., 2018). Other risk factors related to both DV and homelessness include substance misuse (Nilsson et al., 2019;Spencer et al., 2019) and having a criminal record (Iratzoqui & Cohn, 2020;Nilsson et al., 2019). Conversely, social support has been identified as a strong protective factor for both DV and homelessness (Dias et al., 2019;Johnstone et al., 2016;Phipps et al., 2019).
In areas like homelessness and DV, typologies of individuals in need of services can help guide practices or policies such that service matching would provide maximum benefit for the greatest number of clients (Rog & Buckner, 2007).
It is important to understand not just the process and context of seeking services, but how that impacts the services received (Kennedy et al. 2012). DV is an area in which contextual factors and service needs are both important considerations in developing typologies that would support improved service delivery.

| SCOPE OF THE STUDY
The current study was embedded within a larger, ongoing longitudinal demonstration evaluation aimed at examining the mechanisms through which mobile advocacy and flexible funding may lead to housing stability, safety, and wellbeing for DV survivors over time. In the current investigation, we focused on exploring the experiences, contexts, and service needs of homeless and unstably housed survivors as they reached out to DV agencies for supportive services.
The aims of this investigation were threefold: (1) examine whether unstably housed DV survivors can be grouped by housing and financial status, abuse experience, mental health and disability status, substance misuse, criminal history, and level of social support; (2) examine how group membership was associated with demographic variables such as race and ethnicity; and (3) examine how, if at all, subgroup differences impacted survivor needs from DV agencies.

| Participants
Over 400 homeless and unstably housed DV survivors are participating in a larger longitudinal study that began shortly after they sought services from one of five participating DV agencies in in the Pacific Northwest. Staff from each of the five agencies invited eligible clients to hear more about the research study. Eligibility criteria included (1) being a recent survivor of DV, (2) being homeless or at immediate risk of becoming homeless, (3) having sought CHIARAMONTE ET AL. | 3 services within the prior 3 weeks, and (4) speaking English or Spanish, or agreeing to participate with the assistance of an interpreter.
Our research team spoke with 438 eligible survivors who indicated an interest in hearing more about the study. Of those, 406 were willing and eligible to participate in interviews (93%). Survivors are being interviewed five times over the course of 24 months by a highly trained interviewer, with interviews spaced every 6 months.
Participants are paid $50 for each interview. All procedures were approved by Michigan State University's institutional review board.

| Procedures
The current study utilized the data collected at baseline, which includes demographics, historical data regarding abuse and homelessness, as well as information regarding survivors' contextual and service needs. The final sample of 406 participants consisted of predominantly cisgender female (97%) and heterosexual (86%) survivors of DV.
Participants' highest level of education varied considerably: 29% had not completed high school, 22% had a high school diploma/GED, 36% had some vocational training or had attended college classes, and 13% had either Associate's, Bachelor's, or Advanced degrees. Most study participants (73%) had a prior history of homelessness and the vast majority of the sample (87%) had stayed with family or friends at least once to avoid homelessness.
For more detailed demographic data see Table 1.

| Measures
Interviews averaged about 75 min and covered a wide variety of topics including demographics, employment status, well-being, mental health, history of abuse, housing, income, schooling and child behavior, and service needs. The following measure descriptions are only those used for the current analysis. For several measures, we constructed measurement models to measure the constructs and outputted the factor scores as variables in the LCA models. The primary benefit of factor scores over raw sum or mean scores is that factor scores do not include measurement error and therefore provide an unbiased measure of the constructs. Additionally, in generating factor scores, we can relax the assumption that measurement items carry similar weights (Brown, 2015;Curran et al., 2014).

| Current homelessness status
Participants reported their current housing location (e.g., a transitional housing, at a friend or relative's house or apartment and paying part of the rent). Responses were recategorized to indicate participants who reported being homeless or not. Following the definition provided by the U.S. Department of Housing and Urban Development (HUD) (HUD, 2013), homelessness was operationalized as lacking a fixed, regular, and adequate nighttime residence. Within this sample, that included people currently staying in hotels, anywhere outside, in vehicles, abandoned buildings, or in DV or homeless shelters.

| Barriers to obtaining housing
Participants responded to questions about common barriers faced when seeking housing using a modified version of the 19-item index by Gubits et al. (2015) (e.g., poor or no credit history, transportation issues, history of eviction) and four additional items generated for this study (e.g., owing back rent, having unpaid utility debt). Results of an exploratory factor analysis (EFA) with a calibration sample (n =~122) and a confirmatory factor analysis (CFA) with a validation sample (n =~284) produced a 5-factor model with good model fit (CFI = 0.93; TLI = 0.92; RMSEA = 0.046).

| Number of moves
Participants indicated the total number of times they had moved in the last 6 months. We recoded this variable into (0) no moves, (1) one to two moves, (2) three to four moves, (3) five to six moves, (4) seven to eight moves, (5) more than 8 moves.

| Intimate Partner Violence
Experience of IPV through physical abuse, emotional abuse, sexual abuse, and stalking or harassment were measured using a modified version of the Composite Abuse Scale (CAS) (Hegarty et al., 1999;Loxton et al., 2013).
Five new items were added to the scale to better capture stalking, strangulation, and sexual assault. Participants responded to items using a scale ranging from 0 = "Never" to 5 = "Daily." Cronbach's α for the full measure was prior six months the abuser would "force or pressure you to give them your savings or other assets," and "keep you from having a job or going to work." Response options ranged from 0 = "never" to 4 = "quite often." Cronbach's alpha for the measure was .91 (M = 1.46, SD = 1.05).

| Mental health
Participants were asked to respond to the 10-item Trauma Screening Questionnaire (TSQ; Kroenke et al., 2001), 9-item Patient Health Questionnaire (PHQ-9;Brewin et al., 2002), and 7-item Generalized Anxiety Disorder measure (GAD-7; Spitzer et al., 2006) to assess PTSD, depression, and anxiety, respectively. Using scale cut-offs, a variable was created in a yes/no format to depict participants whose scores indicated the existence of PTSD, as well as severe symptoms for depression and anxiety.

| Financial instability
Participants responded to ten questions about their finances using the Adequacy of Financial Support scale, modified from Mowbray et al. (1999). Items assessed whether they had enough money in the prior 6 months for life expenses (e.g., food, rent/mortgage, utilities, childcare, and transportation) using a 4-point scale of difficulty (0 = "Not difficult at all" to 3 = "Very difficult"). For analysis, a mean scale score was created. Cronbach's α for the 10-item measure was 0.87 (M = 2.28, SD = 0.68).

| Unemployment status
In a yes/no format, participants were asked if they held any employment in the past six months. We reverse coded this item for the analysis.

| Criminal record
In a yes/no format, participants were asked if they had a criminal charge that would show up in a background check.

| Physical disability
In a yes/no format, participants were asked if they have a physical disability or disabling condition.

| Social support
The 6

| Substance misuse
The widely used CAGE-AID (Adapted to Include Drugs) tool was used to assess substance misuse (Ewing, 1984).
Response options are yes/no (0 = no and 1 = yes). The original tool includes four questions necessary to ascertain alcohol and illicit drugs use such as "Have you ever felt you ought to cut down on your drinking or drug use?" The items were modified for the current study to include eight items-four questions assessing drug use and four questions assessing alcohol use. Cronbach's α for the full measure was 0.75. For each of the subscales (four items measuring alcohol use and four items measuring drug use), two or more positive answers are considered an indication of abuse. Using these thresholds, we created dichotomous variables for indication of abuse (1) and no indication of abuse (0) for both drugs and alcohol.

| Demographics
Participants provided a number of sociodemographic characteristics including race, ethnicity, education, parental status, and immigration status. For the purposes of this analysis, we recoded race to be a dichotomous variable where 1 signifies participants with one or more minority racial identity and 0 signifies single race White participants. For ethnicity, Hispanic/Latinx participants were coded as 1 and non-Hispanic/Latinx participants as 0.
Education was collapsed into two groups of participants who had completed high school or more schooling and those who completed less than a high school degree. For parental status, if a participant was caring for a child under the age of 18, they received a 1. For immigration status, participants with US citizenship were coded as 1.

| History of homelessness
Participants reported the number of times they had been homeless in their lifetime. Five or more times homeless was collapsed into one category. We also captured information about whether participants had been homeless before the age of 18 in a yes/no format.

| Service needs
Participants responded to 14 yes/no questions about the services they hoped to receive from the agency. These services were housing, employment, education, financial help, legal assistance, childcare, counseling, transportation, healthcare, issues for children (besides childcare), food, clothing, other material goods/services, and increasing social support. We created a sum score of these items for a Total Number of Needs variable (α = 0.70). We also conducted an EFA and CFA using these 14 items. The model fit the data well using a 4-factor structure (CFI = 0.92; TLI = 0.89; RMSEA = 0.043). The four factors were (1) vocational and transportation needs (three items: employment, education, and transportation); (2) financial and housing needs (five items: housing, financial help, food, clothing, material goods); (3) child-related needs (two items: childcare, issues for children); and (4) specialized needs (four items: counseling, legal assistance, healthcare, and social support). Factor scores for each factor were calculated and used in subsequent analyses.

| Latent class analysis
We used LCA with a combination of categorical and continuous indicators to identify unobserved groups or classes of DV survivors who are similar based on participants' housing and financial status, abuse experience, mental health and disability status, substance misuse, criminal history, and level of social support.

Missing data
Only 1.5% of cases had missing data (n = 6) on the LCA indicator or outcome variables, and these cases were removed using listwise deletion.

Variable selection
Estimating too many parameters in an LCA model will result in instability of the model. Therefore, to exclude excessive variables, we conducted a series of variable selection analyses. The variable section model is a fourequation model, in which models were simultaneously estimated using maximum likelihood (ML) as the estimator in Mplus version 8.5 (Muthén & Muthén, 2020 where, 1 В , 2 В , 3 В , and 4 В are the vectors of the regression coefficients. The E 1 , E 2 , E , 3 and E 4 are the error terms of the regression models. To begin the variable selection process, we used a comprehensive set of explanatory variables that conceptually could be related to DV survivors' needs. Next, we employed backward selection and calculated the partial r 2 explained by a new explanatory variable each time we ran the regression models. We dropped the explanatory variables that provided least partial r-squared. The variables selection process stopped when we observed a large drop of the total r 2 . Only the variables that were retained are presented in the measures section.

Research aim 1: Latent class enumeration
To determine the appropriate number of latent classes, we followed class enumeration procedures, wherein we began by specifying an LCA model with one class and evaluated the following fit statistics: Bayesian Information Criterion (BIC; Schwarz, 1978), the Akaike's Information Criterion (AIC; Akaike, 1974), the sample-size adjusted Bayesian information criterion (aBIC; Sclove, 1987); the Vuong-Lo-Mendell-Rubin likelihood ratio test (VLMR; Lo et al., 2001), and the adjusted Lo-Mendell-Rubin likelihood ratio test (aLMR; Sclove, 1987). We repeated this process with each subsequent class model. For each additional model, lower values on AIC, BIC and aBIC indicated superior model fit as compared with the prior model. The aLMR and VLMR were used to assess model fit, such that statistical significance on the aLMR and VLMR likelihood ratio tests indicated whether the model has significantly improved from the prior model. The final step of the class enumeration process included assessing for interpretability, size, and uniqueness of the latent classes.

Research aim 2: Profiling class membership
To address the second research aim, we used the automatic R3step command in Mplus version 8.5 (Asparouhov & Muthén, 2014;Vermunt, 2010). The R3step command is a three-step method using a multinomial logistic regression approach for determining if there are significant predictors of class membership. This method takes the results of the LCA (uninfluenced by auxiliary predictor variables: first step) and estimates most likely class membership (second step). Finally, the model uses a multinomial logistic regression to regress class membership on the auxiliary predictor variables to evaluate their relationships with the class solutions while taking into account misclassification during the second step (third step). Our auxiliary predictor variables included race, ethnicity, citizenship, parental status, education, and history of homelessness.

Research aim 3: Testing distal outcomes
In the final step of the analysis, we employed the automatic DU3step function in Mplus version 8.5 (Muthén & Muthén, 2020) to test whether the emergent classes were associated with survivors' needs from DV agencies. Like the R3step function, the DU3step takes the results of the LCA (uninfluenced by auxiliary distal outcome variables: first step) and estimates most likely class membership (second step). The outcome variables are treated as distal variables assuming unequal means and variances in each class (Asparouhov & Muthén, 2014). Finally, the third step uses a maximum likelihood methods and χ 2 equality of means tests to assess for differences in service needs across classes (Asparouhov & Muthén, 2014;Vermunt, 2010).

| Description of the sample
At study entry, 42% of the participants were homeless (36% living in a shelter, and 6% unsheltered homeless). The other 58% of participants were unstably housed: 24% were in homes they owned or were renting, 22% were staying with family and friends without paying rent, 9% were living with family and friends and paying part of the rent, and 3% were in transitional housing or a drug treatment program.
Most study participants (73%) had a prior history of homelessness. Of those who had been homeless, the average cumulative amount of time spent homeless was just over 2 years. Almost a third of those with a history of homelessness had been homeless at least once before age 18. Seventeen percent of all participants had been in foster care. The vast majority of the sample (87%) had stayed with family or friends at least once to avoid homelessness.
Over half of the participants had been employed (58%) at some point in the 6 months before participating in the study, but only 35% were employed at study entry. Of those who had lost their jobs in the prior 6 months, 70% reported it was due to the abuse they had experienced.
With regard to post traumatic stress disorder (PTSD), a score of six on the TSQ signifies the presence of PTSD and the average score was just above this cutoff (M = 6.88, SD = 2.48).

| Research aim 1: Latent class enumeration
Our first research aim explored whether we could identify distinct classes of DV survivors based on similar characteristics and contextual barriers. Following class enumeration procedures, we generated LCA models with solutions ranging from one to six classes to identify the best fitting model. As shown in Table 2, examination of the AIC, BIC, aBIC, VLMR, and aLMR supported identification of the four-class model. Although the three-class model showed potential (lower AIC, BIC, ABIC), the significant aLMR indicated that adding a class leads to statistically significant improvement in model fit. Furthermore, the four-class solution breaks out the largest class into two more interpretable classes while retaining adequate class sizes (>5% of data). Figure 1a illustrates the response patterns on the continuous variables for the four classes. Figure 1b presents the item probability plots for the categorical variables. As shown, the classes were clearly distinguishable on all variables entered into the model.
The four-class solution illustrates a clear high, medium, and low placement of the class assignments, with the middle group breaking out into two classes.
We labeled Class (1) highest disadvantages service seeker and Class (4) lower disadvantages service seeker. Lower disadvantages service seekers had the lowest scores on all class indicators. In contrast, participants assigned to the highest disadvantages service seeker class reported higher scores on all class indicators. Two distinct classes comprised the moderate disadvantage service seekers. Participants in these two classes had similar scores between the lower and highest disadvantage service seeker classes across almost all indicators, with three exceptions. What distinguished these two moderate classes were the scores on criminal legal system (CLS) variables (e.g., legal housing barriers, criminal record, and drug abuse). As a result, we labeled Class (2) moderate disadvantages CLS service seeker, and Class (3) moderate disadvantages service seeker. The moderate CLS class had the highest scores across all four classes on the three criminal-legal focused variables. In addition, participants assigned to the moderate CLS class had slightly higher item response probability of having a physical disability than the highest disadvantages class.
As illustrated in Figure 1a,b, participants assigned to the moderate disadvantages service seeker class comprised the majority of participants (35.3% of the sample; n = 143). The lower disadvantages service seeker class comprised 23.3% of participants (n = 94). The highest disadvantages service seeker class compromised 22.8% of participants (n = 91). Finally, the smallest class was the moderate disadvantages CLS service seeker class, which comprised 18.7% of the sample (n = 73). Three indicators-housing barriers related to children, current PTSD symptomology, and alcohol abuse-were not adequate differentiators of class membership.

| Research aim 2: Profiling latent classes
Our second research aim focused on understanding whether class compositions differed demographically or based on survivors' homelessness histories. Multinomial logistic regression results are presented in Table 3. As illustrated, the four classes did not significantly differ based on race, ethnicity, citizenship, education, or parental status. The only significant differences were based on participants' homelessness histories. Individuals assigned to the highest disadvantages service seeker class had greater history of homelessness (M = 2.86, SD = 1.95), followed by

| Research aim 3: Testing distal outcome
Our final aim tested whether the four distinct classes of survivors could predict the number and types of resources and services that survivors seek out from DV agencies. These results are presented in Table 4 (4) specialized service needs, we tested the equality of means across classes and were able to significantly predict the type of resources and services survivors in each class needed from the agency. Survivors in the highest disadvantages service seeker class had significantly higher scores in all four DV service provision categories compared with the lower disadvantages service seekers. Both moderate disadvantages service seeker classes had significantly higher scores than the lower disadvantages service seeker class in all domains. Across the two moderate disadvantages classes, the moderate CLS class needed significantly more services related to specialized needs (e.g., counseling, legal assistance, healthcare, and social support) compared with the moderate disadvantages class.

| DISCUSSION
The results of this study complement several others in emphasizing the importance of matching interventions and services to the unique needs of individuals seeking help (Goodman et al., 2016;Nichols, 2013;Sullivan, 2018).
Individuals who have recently experienced DV commonly report needing a range of assistance to ensure their safety and well-being Thomas et al., 2020). In this study we found that, among homeless or unstably housed DV survivors, there were four distinct types of service seekers, distinguished by the number of difficulties and disadvantages they brought with them when seeking help. Interestingly, groups did not differ by type of disadvantage, but by severity. Furthermore, the four groups did not differ by race, ethnicity, citizenship, education, or parental status. The class differences in health, social support, DV victimization, financial and housing instability, and criminal history were consistently in magnitude only.
Evidence for the link between level of disadvantage and need for services was apparent in our findings. Each class was significantly associated with both the number and type of services survivors reported needing from the agency, such that those with the highest disadvantages reported wanting a significantly higher number and broader range of services from the agency compared with the other classes. These findings support the deduction that there are diverse subgroups of survivors seeking services and these groups may want and need different types and levels of assistance (Cattaneo et al., 2020;Davies & Lyon, 2013;Goodman et al., 2016). These findings also corroborate the importance of providing survivor-centered advocacy to assist survivors in obtaining safe and stable housing. Having a clear sense of survivors' contextual realities, including specific disadvantages and potential barriers to housing, may provide important insight to effectively respond to survivors' unique needs and goals.
Notably, although survivors within the four classes differed in the number and types of services needed, all four still hoped for significant support. The mean number of resources and services requested from survivors in the CHIARAMONTE ET AL. Note: Reported means are based on the residuals from regression models that account for covariates. Abbreviation: CLS, criminal legal system. *p < 0.001; **p < 0.05; ***p < 0.001. lowest need group was over seven (out of 14), highlighting that even DV survivors with fewer disadvantages still require significant assistance to obtain safe and stable housing. Furthermore, this finding points to the importance of strong collaborations between DV agencies and other community resources to best support the needs of survivors and their families, suggesting that it is critical for advocates to be knowledgeable of other supportive services and resources available in their communities. This corroborates other findings that suggest that connecting survivors to the multiple services they need may be essential for survivors' housing stability, particularly those with legal barriers (Kubiak et al., 2011;Sullivan, López-Zerón et al., 2019).
The types of disadvantages measured in this study support and advance what we know about common housing barriers facing DV survivors (Adams et al., 2018;Daoud et al., 2016). In particular, our findings suggest that survivors in the highest disadvantages class, who were the most likely to be homeless and unemployed upon entry into services, also needed an array of additional services, including mental health services, transportation, and other safety-related services, alongside traditional housing services. This is an important finding as it highlights how critical it is to tailor services to survivors' unique needs. It is clear that although some needs might not be typically associated with housing stability (e.g., transportation and employment), they may impact survivors' ability to obtain and maintain safe and stable housing.
The moderate CLS disadvantages class members were more likely to have legal-related disadvantages, including having a criminal history, drug use, and other legal-related housing barriers. Housing scholars have consistently found evidence that possessing a criminal history exacerbates the process of obtaining safe and stable housing and employment (Barile et al., 2018;Evans et al., 2019;Jason et al., 2007;Purtle et al., 2020). However, although DV survivors may share some similar barriers to accessing employment and housing as other unstably housed populations, the impact of prior criminal histories is less understood in this population. Regardless of whether a survivor's criminal history is related to DV, it can drastically impact housing and employment access (Kubiak et al., 2011). As such, this finding has important implications for the training of advocates to effectively address survivors' criminal background. This may include expunging prior records, understanding survivors' housing rights related to felonies and misdemeanors, and advocating with landlords around this issue (Kubiak et al., 2011).
In addition to requiring a high number of services from agencies, participants assigned to the moderate CLS class were also significantly more likely to report needing specialized services from DV agencies. In this study, specialized services were operationalized as services other than the "typical" advocacy services provided at DV agencies. This included counseling, legal assistance, health care, and social support. This finding has important implications for the allocation of DV service and advocacy funding to support navigation of legal and physical and mental health systems. In addition, providing space and resources to bolster social support is something that DV service providers try to do when resources allow, and these findings reinforce recommendations to promote ongoing counseling or social support groups, for example (Guyon-Harris et al., 2017).
Another key difference between the classes was the presence of a physical disability. Individuals in the moderate CLS disadvantages, the highest disadvantages, and the moderate disadvantages classes were more likely to report the presence of a physical disability compared with the lower disadvantages class. Barile and colleague's LCA examining pathways to homelessness similarly found that individuals with physical disabilities reported higher needs and differential barriers to accessing services, particularly around transportation (Barile et al., 2018(Barile et al., , 2020. As such, our findings join others in highlighting the importance of considering clients' disabilities when providing services. While DV advocates are often aware of the mental health issues that come with experiences with DV, less is known about how that is compounded by living with a disability while unstably housed. Future research should consider investigating such overlapping disadvantages particularly in relation to housing-related help seeking. Class membership also differed by level of drug misuse and abuse, with those in the highest disadvantage groups most likely to report this behavior. This finding corroborates other studies evidencing a link between DV victimization and substance abuse. For example, a national survey found that DV victims were significantly more likely to actively use cannabis, cocaine, and opioid use, or experience problems related to CHIARAMONTE ET AL. | 17 these substances than those who had not experienced DV (Smith et al., 2012). Another study found that women attending a methadone clinic were three times more likely to report frequent heroin use if they had also reported DV (El-Bassel et al., 2005). Given the varied detrimental impacts substance abuse can have on a DV survivors' health, housing, employment and well-being, findings support the efforts that DV programs are making with substance abuse treatment programs to effectively serve this population (Macy & Goodbourn, 2012).
In line with prior research on the importance of social connection, participants in the class noting lower disadvantages also reported having higher levels of social support, and vice versa with the highest disadvantage class (Liang et al., 2005). Some DV programs have intentionally created services and responses around improving survivors' social support, with some evidence that these actions lead to their improved well-being (Ogbe et al., 2020). This finding is also consistent with a growing body of literature suggesting that survivors prefer DV agencies, shelters, and housing solutions that promote community building and social support (Hetling et al., 2020). Goodman and Smyth (2011) have specifically called for taking a social network-oriented approach with survivors, involving their informal support networks in their safety and recovery. Given the number of people in this study who were staying with family or friends or who had done so in the past to avoid homelessness, this approach seems especially important in preventing homelessness among DV survivors.

| Limitations
Findings need to be considered in light of study limitations. As with any exploratory analysis, there is always a possibility that relevant themes may have been misinterpreted, overlooked, or over emphasized. First, we may have unintentionally excluded variables that should have been considered for the LCA model. Given the litany of factors that could influence DV service needs, we relied on theory and a statistical variable selection process to determine which variables to include in the model. As such, several of the variables included in this analysis are factor scores. Although this allowed us to include a wider variety of topics in the LCA model, we simultaneously lost information about individual items. Nonetheless, we remain confident in the classes observed and the rigorous methods applied to our variable selection process. Additionally, these data are cross sectional baseline data and therefore represent participants who have not yet received services from the agency. Thus, this study is limited by only relying on reports of what participants needed before receiving services. We are aware that service need is not a time invariant variable and are interested in exploring how service needs change over time for these classes of DV survivors. However, the data for subsequent timepoints are still being collected. Moving forward, we hope to build on this analysis to look at whether the classes found in this study change over time and the extent to which different survivors' needs are met.
The generalizability of findings may be impacted by a number of factors. All of the study participants were not only DV survivors but also unstably housed or homeless at the start of the study. Most identified as heterosexual and cisgender. While the sample was heterogeneous in terms of race and ethnicity, it was primarily Latinx, African American or White, and more studies are needed with a higher number of Native American and Asian American participants. Finally, this study was conducted in the Pacific Northwest, and may reflect some contexts and service needs specific to that geographic area.

| Policy and practice implications
There are several important implications to glean from this study for both policy and practice. This study joins a growing evidence base demonstrating the utility of identifying distinct groups of service seekers who may subsequently require different services (e.g., Barile et al., 2020;Bridges et al., 2012;Jahiel & Babor, 2007;Theodos et al., 2012). While such classes should never be used to drive or mandate services, they can be useful in helping practitioners and policy makers embrace the need for providing clients with a wide range of assistance. This requires planning for and allocating agency resources (e.g., staffing, training, and time) so that those clients with fewer needs do not receive assistance they do not request or want, while clients with greater and interrelated disadvantages receive the additional resources and help they are seeking. This may mean that a small but important group of clients should be expected to need a wider array of services for a longer period of time. While resource-intensive, if those with fewer or less intensive needs are not provided services they are not seeking, agencies can ideally balance resources accordingly (Culhane et al., 2011).
Uncovering evidence for multiple types of service seekers also has important implications for the types and level of services DV agencies provide. For example, advocates may be able to assess whether a client needs a "light touch" of service provision as opposed to a high-needs client that requires a heavier dose of service provision, and adapt their caseloads accordingly. Furthermore, having a concrete understanding of the various experiences, contextual realities, and potential housing barriers of unstably housed survivors could significantly help advocates prioritize their efforts accordingly. This holistic understanding may provide advocates with the necessary insight to adequately tailor services to effectively respond to survivors' individual needs.
Nevertheless, DV advocates working on the front lines might find evidence of higher, moderate, and lower need classes of survivors unsurprising, as advocates see a diversity of survivors and their stories each day. Advocates may already be able to determine survivor needs at intake but are limited by the resources available to adequately address survivor needs. As such, these findings might be best disseminated to policy makers and institutions that fund such DV services to account for extra training, staff, resources, and funding time required to provide adequate support around housing for multiply disadvantaged DV survivors.
Additionally, these findings speak to the importance of community mobilizing and collaborations across agencies on the front lines. With the ever-shifting landscape of housing equity in the United States, we urgently need collaborative synergy across communities in efforts to safely house disadvantaged community members.

| Conclusion
This study aimed to gain a broader understanding of the range of contextual factors influencing the service needs of homeless and unstably housed DV survivors. Overall, findings from this analysis elucidate the diversity in housing needs and barriers faced by DV survivors as well as highlight critical aspects of providing adequate and survivor-centered services when working with unstably housed and homeless DV survivors. The results further reveal important implications for the ways in which DV agencies can promote efficient service matching. Finally, findings add to the burgeoning literature around attending to the multitude of factors that influence homelessness prevention for DV survivors.