Abstract
This pilot randomized control trial (RCT) tested “Do More, eel Better” (DMFB), a lay-delivered Behavioral Activation intervention for depressed senior center clients. The study examined: 1. the feasibility of training older lay volunteers to fidelity; and 2. the acceptability, safety, and impact of the intervention. Twenty-one lay volunteers at four senior centers were trained in DMFB. Fifty-six depressed clients were randomized to receive 9 sessions of DMFB or Behavioral Activation delivered by social workers (MSW BA). Research assessments of overall client activity level (BADS) and depression severity (HAM-D) were conducted at baseline and weeks 3, 6, and 9. Eighty-one percent of lay volunteers who underwent training were formally certified in DMFB. Depressed clients receiving each intervention reported high levels of satisfaction and showed large and clinically significant changes in 9-week activity level (d ≥ 1.35) and depression severity (d ≥ 3.34). Differences between treatment groups were very small for both activity level (dMSW = 0.16; 95% CI, −0.70 to 1.02) and depression (dMSW = 0.14; 95% CI, −0.63 to 0.91). Increases in activity level were associated with decreases in depression (β = −0.42; 95% CI, −0.55 to −0.30). Both interventions appeared to work as intended by increasing activity level and reducing depression severity. “Do More, Feel Better” shows the potential of evidence-based behavioral interventions delivered by supervised lay volunteers, and can help address the insufficient workforce available to meet the mental health needs of community-dwelling older adults.
Keywords: older adults, depression, lay-delivered interventions, behavioral activation, aging care settings
Older community-dwelling individuals who attend senior centers have high rates of depression and are underserved. Senior center clients represent large numbers of mid to low-income older adults across the country with multiple social service needs, nutritional insecurity, and financial vulnerability (Aging, 2016; Mabli et al., 2017; Pardasani, 2004; Turner, 2004). Reports have documented that 10-25% of these individuals experience clinically significant depression (Berman & Furst, 2014; Raue, Dawson, et al., 2019a; Sirey et al., 2020). Senior centers do not typically offer mental health services, nor are older depressed adults likely to accept a referral or engage in evidence-based treatment (Gum et al., 2014; Sirey, 2013). Compounding this unmet need is the dearth of existing mental health providers trained to serve older adults (Bartels & Naslund, 2013; Eden et al., 2012). Untreated depression among older adults, even at milder levels, has been linked to a variety of poor health, mental health, and quality of life outcomes (Alexopoulos, 2005; Friedrich, 2017; Gallo et al., 2013; Jia & Lubetkin, 2017; Lyness et al., 2006).
The U.S National Council on Aging (NCOA) and the Substance Abuse and Mental Health Services Administration (SAMSHA) have promoted the importance of integrating mental health programs into aging service settings (NCOA, 2007; SAMSHA, 2012). Given the lack of a geriatric mental health workforce, lay health providers have been identified as a viable solution (Bartels & Naslund, 2013; Eden et al., 2012; Raue, Dawson, et al., 2019a; Raue, Sirey, et al., 2019b). Behavioral interventions delivered by lay providers in aging care settings may be less costly than professionally-delivered interventions, may be equally or more acceptable to older adults, and may show similar effectiveness in improving target and clinical outcomes. Multiple reports have demonstrated that a variety of lay-delivered behavioral interventions are feasible and effective in community and residential settings (Barnett et al., 2018; Bryant et al., 2020; Chartier & Provencher, 2013; Ekers et al., 2011; Quijano et al., 2007).
Toward this end, the study team developed a 9-session Behavioral Activation intervention called “Do More, Feel Better” that matches the skill set of lay providers (hereafter termed DMFB). DMFB was designed to tap into the hundreds of thousands of older adults who serve as volunteers across the national aging network (Aging, 2016). Further enhancing the potential sustainability of DMFB is a culture of health promotion and socialization within senior centers, and existing staff that can be drawn on to support both depression screening and supervision of volunteer activities. Also of note are the health and mental health benefits volunteers themselves may experience from participating in such a program (Anderson et al., 2014; Gruenewald et al., 2016; Tang et al., 2010). Behavioral Activation was chosen as the basis for DMFB given its straightforward nature and fit for older adults, including for those with low education level or mild cognitive impairment (Blazer, 2002; Porter et al., 2004). Numerous studies have documented the effectiveness of Behavioral Activation for depression among both adults (Coffman et al., 2007; Dimidjian et al., 2011; Mazzucchelli et al., 2009) and older adults (Cernin & Lichtenberg, 2009; Chartier & Provencher, 2013).
Early pilot work with New York City senior centers helped refine DMFB and supported the feasibility of training lay volunteers to rigorous fidelity standards (Raue, Sirey, et al., 2019b). A partnership with four Seattle-area senior centers documented the acceptability of DMFB from a variety of stakeholders prior to implementation of the current randomized controlled trial. In particular, 81% of clients would consider participating in DMFB if depressed and 59% of existing volunteers expressed interested in serving as coaches for the intervention (Raue, Dawson, et al., 2019a).
The aims of the current randomized controlled pilot trial were to examine: 1. the feasibility of training lay volunteers to fidelity in DMFB; and 2. the acceptability, safety, and preliminary impact of DMFB, in comparison to Behavioral Activation as delivered by master’s-prepared social workers (hereafter termed MSW BA). The study explored changes in overall activity level (target variable; Behavioral Activation Scale; BADS)(Kanter et al., 2006) and depression severity (Hamilton Depression Rating Scale; HAM-D)(Hamilton, 1960) over 9 weeks, but did not conduct formal null hypothesis significance testing due to this study’s primary purpose as a feasibility trial.
Methods
Participants
Lay Volunteers.
Senior center staff described the study and the DMFB intervention to volunteers whom they believed possessed good interpersonal skills. Investigators followed up with a structured interview guide which used behavioral examples (e.g., “Can you give me an example of how your experience has helped you to help another person going through depression, or having a difficult time emotionally?”) that reflected key competencies (e.g., “Experience/Service to Others”). Eligibility criteria were: age≥60 years; senior center participants; English-speaking; Mini-Mental State Examination (MMSE) ≥ 24 (Folstein et al., 1975); and satisfactory global ratings from the interview guide. Exclusion criteria were: current elevated depressive symptoms (PHQ-9 scores≥10)(Kroenke et al., 2001); or current manic, hypomanic, or psychotic symptoms (SCID IV probes)(First MB, 1995).
Social Workers (MSWs):
Eligibility criteria for social workers were: Master’s of Social Work degree; and English-speaking.
Clients.
Referral to study (stage 1): age≥ 60 years; attended a senior center; and PHQ-9 score ≥10 via routine screening by senior center staff or Research Assistants. Research assessment (stage 2): clinically assessed Hamilton Depression Rating Scale (HAM-D)≥ 14 and ≤25; MMSE ≥ 24 (Folstein et al., 1975); English-speaking; and capacity to consent. Client exclusion criteria: current passive or active suicidal ideation (HAM-D item and Raue Suicide Risk Protocol (Raue et al., 2006)); presence of psychiatric diagnoses other than unipolar, non-psychotic major depression or generalized anxiety disorder (SCID IV); current weekly psychotherapy; or severe or life-threatening medical illness.
Procedures
Four Seattle senior centers participated in the study. The study’s design was to certify 3 lay volunteer coaches and 1 social worker per center, each of whom would see 3 clients.
To keep the research team blinded to client’s randomization status, the study statistician randomized clients using blocked randomization with randomly selected block sizes. A total of 56 eligible clients were randomized at a 3:1 allocation ratio to DMFB (n=42) or MSW BA (n=14). This ratio was chosen to prioritize gaining experience providing DMBF via lay volunteers, as procedures for Behavioral Activation delivery via professionals are already well established.
Research Assistants (RAs) enrolled participants, and the PI assigned them to intervention condition. External mental health referrals were offered to clients in both arms. RAs repeated assessments at weeks 3, 6, and 9 weeks. RAs were blinded to study aims and randomization status at baseline assessment, but were not kept blinded following the baseline. Research interviews and interventions were designed to be delivered in-person when possible. Due to COVID-19 precautions, recruitment, intervention, and assessments with the study’s final eight participants were conducted via telephone.
The study was approved by the University of Washington Institutional Review Board (IRB). All client, volunteer, and MSW participants provided informed consent. Recruitment ran 3/2018-7/2020.
Intervention
Do More, Feel Better (DMFB).
The DMFB manual instructs coaches in using structured agendas and in-session worksheets for each of 9 meetings (see Raue (2019b) for more detailed description). Meeting 1 involved: 1. Introduction of the DMFB program and the role of a coach (i.e., structure of meetings, how coaches facilitate the program, confidentiality); 2. Review of PHQ-9 symptoms (i.e., probes for client perspective on most distressing symptoms, interference with functioning, life context); 3. Psychoeducation about depression and the rationale for DMFB; 4. Compilation of a list of pleasant and rewarding activities, each rated for their current difficulty level by clients (easy, medium, hard); and 5. Daily activity scheduling for the week. Follow-up meetings involved: 1. Monitoring symptom severity via the PHQ-9; 2. Homework review and troubleshooting; and 3. Ongoing daily activity scheduling for the week.
Social Worker Behavioral Activation (MSW BA).
Social workers followed the Brief Behavioral Activation for Depression - Revised Treatment Manual (Lejuez et al., 2011) and offered 9 sessions.
Training and supervision.
Investigators trained eligible volunteers in four 2-hour sessions over 1 month, consisting of didactic on late-life depression, the DMFB intervention, and step-by-step demonstration and role play experiences. Training incorporated discussion of confidentiality, scope of role as coaches, interpersonal boundaries, handling client distress, and procedures for detection of clinical deterioration. At the 4th session trainees role-played a full initial client meeting, and they achieved certification if investigators rated them ≥3 (satisfactory) on DMFB Fidelity forms (Raue, Sirey, et al., 2019b). Ratings were made on a 6-point scale ranging from “very poor” to “very good”. Individual items reflect key elements of the intervention: symptom review, homework review, activity scheduling, agenda setting and time management, and communication and interpersonal skills, with a final global rating integrating all sets of skills. If trainees did not achieve certification after a maximum of 5 simulated role plays, they did not serve as coaches for the trial. Following successful certification, coaches were approved to see depressed clients. Investigators provided 30-minute individual supervision to each coach every week they held an active caseload. Social workers separately underwent two 2-hour training sessions, and they followed the same certification and supervision structure.
Assessment and management of clinical deterioration.
Interventionists in both arms administered the PHQ-9 at the start of every client meeting. Client endorsement of suicidal ideation on PHQ-9 item 9, or total scores that increased by >30% for 2 consecutive meetings triggered an assessment by study investigators and mental health referrals as indicated. Clients with active suicidal ideation were removed from the study and followed up by study investigators to ensure connection to care. Interventionists continued to meet with clients reporting passive suicidal ideation or increased depressive severity, and they provided ongoing support for clients’ engagement in formal mental health care.
Measures
Interventionist fidelity.
An external expert in Behavioral Activation who was not a member of the research team assessed fidelity to each intervention using fidelity forms (Lejuez et al., 2011; Raue, Sirey, et al., 2019b) on one randomly selected audiotaped session per case.
Client measures.
Clients scoring PHQ-9 ≥10 via routinely screening by senior center staff or Research Assistants (RAs) were referred to the study. Two master’s-level students in clinical psychology doctoral programs served as study RAs. Investigators trained and certified RAs in the SCID IV and HAM-D by having them observe standard training videotapes, role play, observe assessment administration, and conduct recorded interviews for supervision and feedback. Following consent of clients who screened positive, RAs assessed cognitive functioning with the MMSE, psychiatric symptoms using the Structured Clinical Interview for DSM IV, depression severity with the HAM-D, and overall activity level with the Behavioral Activation Scale (BADS)(Kanter et al., 2006). In regular meetings, the PI reviewed RA judgments and descriptions of symptom presentation and pervasiveness and then assigned final SCID IV diagnoses. RAs repeated the HAM-D and BADS at weeks 3, 6, and 9. They assessed client satisfaction at week 9 using the 3-item Client Satisfaction Scale (CSQ)(Larsen et al., 1979), a 4-point scale ranging from 0 (strongly disagree) to 4 (strongly agree).
Volunteer measures.
Volunteers completed the following scales at baseline and 12 months later: the 13-item Generativity Scale (Carlson et al., 2015) to assess perceptions of generative desire and achievement; the 10-item General Self-Efficacy Scale (Schwarzer & Jerusalem, 1995) to assess belief in one's competence to cope with stress; and the SF-12 (Ware et al., 1996) to assess overall functioning.
Analytic Plan
The sample size was chosen for pragmatic reasons, and the study was not powered to conduct formal null hypothesis significance testing. Instead, probability that the point estimate of the difference between DMFB vs MSW BA would be within a margin was calculated. With 36 DMFB and 12 MSW-BA participants, there was >77% probability that the mean difference in HAM-D would be within a margin of 2 HAM-D points (Cohen’s d ≤ 0.5) assuming the true difference to be <1 point and a standard deviation of 4 points. A point estimate falling within this margin would provide preliminary information suggesting that the treatments were similar enough to proceed with a fully powered non-inferiority trial. With 36 DMFB participants, there was > 80% power, at an alpha=0.05, to detect a correlation r > 0.44 between improvement in BADS and improvement in HAM-D.
To estimate intervention effects, a two-level mixed effects model with repeated observations (level-1) nested within clients (level-2) was used. Models included a random intercept, random linear slope, and separate fixed effect indicator variables for the 3, 6, and 9- week time points to allow for curvilinear change over time. Condition-by-time interaction terms were included to estimate the adjusted difference between DMFB and MSW BA at each time point. To estimate provider outcomes a similar multilevel model was used, but only the main effect of time was included as only providers in the DMFB condition were analyzed. To estimate the association between activity level and depression, activity level was decomposed into time-invariant baseline scores and time-varying change scores, and these were included as covariates in the mixed effects model (Curran & Bauer, 2011). Consistent with intent-to-treat analysis, all available data were included in the models, regardless of client dropout status. Because the study was not powered for null hypothesis significance testing, inferential tests were not conducted but instead point estimates and 95% confidence intervals were presented for all parameters. Cohen’s d effect sizes were calculated by dividing point estimates by the pooled baseline standard deviation. All analyses were performed in R (R Core Team, 2013) using the lme4 package (Bates, 2007).
Results
Client participant flow and characteristics
The Consort chart (Figure 1) depicts client flow through the study. The study identified 73 clients scoring PHQ-9≥10 by senior center staff or Research Assistant. Of 72 baselines conducted, 56 clients met study eligibility criteria while 16 were excluded for low symptom severity or other psychiatric diagnoses. Eligible clients were randomized to receive DMFB (n=42) versus MSW BA (n=14). Table 1 presents client characteristics by study condition. The mean age for the full sample was 70 (sd=6.1); 80% were female; 70% White, 23% African-American or Black, 7% other race, and 1.8% Hispanic. 86% met SCID IV criteria for major depression, with the remainder endorsing subthreshold symptoms. Nine-week data were available for 33 (79%) DMFB and 11 (79%) MSW BA clients.
Figure 1:
Consort Flowchart
Table 1.
Baseline Characteristics of Enrolled Clients
| Overall (N = 56) |
DMFB (N = 42) |
MSW BA (N = 14) |
||||
|---|---|---|---|---|---|---|
| N | % | N | % | N | % | |
| Gender | ||||||
| Female | 45 | 80.4 | 34 | 81.0 | 11 | 78.6 |
| Male | 10 | 17.9 | 7 | 16.7 | 3 | 21.4 |
| Other | 1 | 1.8 | 1 | 2.4 | 0 | 0.0 |
| Race | ||||||
| White | 39 | 69.6 | 29 | 69.0 | 10 | 71.4 |
| African American | 13 | 23.2 | 11 | 26.2 | 2 | 14.3 |
| Asian | 2 | 3.6 | 1 | 2.4 | 1 | 7.1 |
| Native American | 1 | 1.8 | 1 | 2.4 | 0 | 0.0 |
| Other | 1 | 1.8 | 0 | 0.0 | 1 | 7.1 |
| Hispanic = Yes | 1 | 1.8 | 0 | 0.0 | 1 | 7.1 |
| SCID Diagnosis Major Depression = Yes | 48 | 85.7 | 35 | 83.3 | 13 | 92.9 |
| Current Antidepressant Medication = Yes | 28 | 51.9 | 23 | 57.5 | 5 | 35.7 |
| Mean | SD | Mean | SD | Mean | SD | |
| Age | 70.3 | 6.1 | 67.0 | 5.4 | 71.5 | 8.1 |
| Years Education | 15.7 | 2.8 | 15.7 | 2.9 | 15.9 | 2.3 |
| Duration of depressive symptoms (months) | 30.2 | 96.3 | 18.4 | 27.5 | 64.6 | 185.7 |
| HAM-D total | 18.1 | 3.2 | 17.8 | 3.2 | 18.9 | 3.3 |
| BADS total | 76.6 | 21.5 | 78.4 | 22.4 | 71.2 | 18.4 |
Volunteer participant characteristics
Across the four centers, 21 volunteers without a professional mental health background were trained. The mean age was 76.9 (sd=6.6; range=65-89); 85% were female; 65% White, 30% African-American, and 5% Asian. Their mean years of education was 16.8 (sd=2.6).
Feasibility: Lay volunteer certification and session fidelity
Seventeen of 21 volunteers (81%) met the study’s certification standards, while 3 dropped out prior to training completion due to competing time demands and 1 failed to certify. Fidelity ratings based on review of 36 sessions by an external expert revealed that all sessions meet criteria for “satisfactory” or higher fidelity (scores ≥3 on the “Do More, Feel Better” Fidelity form (Raue, Sirey, et al., 2019b).
Acceptability
Thirty-three clients (79%) assigned to DMFB completed 9-week follow-ups, as did 11 clients (79%) assigned to MSW BA. All but one client who were seen via telephone due to COVID precautions completed 9-week follow-ups. Nine-week satisfaction ratings were high for both DMFB (10.6 out of 12; sd=2.2) and MSW BA clients (mean=10.6; sd=1.7).
Clinical Impact
Clients evidenced large decreases in depression severity in both DMFB (B = −10.8; 95% CI, −12.4 to −9.2) and MSW BA (B = −11.4; 95% CI, −13.9 to −8.9; Table 2 and Figure 2). Clients also reported large increases in activity levels in both DMFB (B= 29.1; 95% CI, 20.1 to 38.8) and MSW BA (B = 32.1; 95% CI, 17.1 to 49.1); within group effect sizes for both outcomes all fell in the large to very large range (ds ≥ 1.35 for activity level and ds ≥ 3.34 for depression; Figure 2). Between-group differences were very small for both depression (BMSW = 0.50; 95% CI, −2.3 to 3.3) and activity level (BMSW = −3.0; 95% CI, −19.5 to 13.6), although wide confidence intervals meant that moderately sized effects in either direction could not be ruled out. Increases in activity level were moderately associated with decreases in depression (β = −0.57; 95% CI, −0.73 to −0.40).
Table 2.
Observed and Model-Adjusted outcome
| DMFB | MSW BA | Treatment Comparison | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | N | Mean | SD | Adj. Change |
se | N | Mean | SD | Adj. Change |
se | Adj. Group Diff. |
95% CI | Cohe n’s d |
95% CI | Cohen’s d Effect Size |
| Depression |
|
||||||||||||||
| Baseline | 42 | 17.8 | 3.2 | --- | 14 | 18.9 | 3.3 | --- | --- | --- | |||||
| 3 Months | 38 | 10.5 | 3.8 | −7.5 | 0.6 | 11 | 11.9 | 3.2 | −6.3 | 1.0 | −1.16 | −3.3-0.9 | −0.36 | −1.01-0.29 | |
| 6 Months | 34 | 8.2 | 4.4 | −9.7 | 0.7 | 12 | 8.8 | 3.1 | −9.3 | 1.1 | −0.4 | −2.7-1.9 | −0.12 | −0.83-0.59 | |
| 9 Months | 33 | 6.7 | 3.9 | −10.8 | 0.8 | 11 | 6.8 | 3.7 | −11.4 | 1.3 | 0.5 | −2.3-3.3 | 0.16 | −0.70-1.02 | |
| Activity Level | |||||||||||||||
| Baseline | 42 | 78.4 | 22.4 | --- | 14 | 71.2 | 18.4 | --- | --- | --- | |||||
| 3 Months | 38 | 101.7 | 21.6 | 23.7 | 3.2 | 11 | 92.2 | 23.0 | 16.6 | 5.3 | 7.2 | −4.5-18.8 | −0.33 | −0.88-0.21 | |
| 6 Months | 34 | 104.8 | 23.7 | 25.9 | 3.8 | 12 | 99.1 | 25.9 | 24.2 | 6.0 | 1.7 | −11.7-15.0 | −0.08 | −0.70-0.54 | |
| 9 Months | 33 | 108.7 | 23.5 | 29.1 | 4.6 | 11 | 107.7 | 25.4 | 32.1 | 7.5 | −3.0 | −19.5-13.6 | 0.14 | −0.63-0.91 | |
Note. DMFB = Do More, Feel Better. MSW BA = Behavioral Activation delivered by providers with a Master’s degree in social work. Adj. = Adjusted. Diff. = Difference. CI = Confidence Interval.
Figure 2.

Model-Adjusted Trajectories and Within-Group Effect Sizes
Note. Y-axes are scaled to 2 standard deviations to facilitate interpretation.
Safety
One client receiving DMFB and one receiving MSW BA reported active suicidal ideation on interventionist-administered PHQ-9. Study investigators conducted follow up risk assessments and connected clients to appropriate services.
Impact on Volunteer Coaches
At baseline, volunteer coaches had relatively high scores for Generativity (M = 62.2, sd = 7.1), General Self-Efficacy (M = 32.0, sd = 3.0), and overall functioning as assessed by the SF-12 (M = 37.7, sd = 4.9). Generativity and SF-12 scores did not change across 12 month follow-up (Generativity B = −1.2 ; 95% CI, −5.1 to 2.7; d = −0.17; SF-12 B = −0.1; 95% CI, −2.5 to 2.3; d = −0.01), whereas General Self-Efficacy had significant increases with the effect size in the moderate to large range (B = 2.1; 95% CI, 0.8 to 3.5; d = 0.71).
Discussion
Study data provide evidence for the feasibility and safety of “Do More, Feel Better.” Training procedures yielded success at certifying 81% of eligible older volunteers as coaches. This proportion compares favorably to an earlier pilot where only 64% of volunteers were certified (Raue, Sirey, et al., 2019b), and may reflect the current study’s use of more rigorous interview procedures to determine volunteer eligibility. From a dissemination perspective, aging organizations may expect that a small proportion of volunteers they screen either will not certify or will drop out prematurely. As another indicator of the feasibility of DMFB, all randomly selected sessions from coaches met “satisfactory” or higher fidelity criteria as determined by external audiotape review. One client participant from each treatment condition developed active suicidal ideation, which was detected by routine PHQ-9 screening and confirmed by study investigators. While this detection was an indicator of successful intervention safety precautions, organizations interested in implementing DMFB will be advised to develop suicide risk protocols if not already in place.
Study data also document that “Do More, Feel Better” was an acceptable intervention for depressed client participants, who demonstrated high attendance and satisfaction levels. The study was not powered to formally test non-inferiority hypotheses, yet DMFB showed large and clinically significant increases in activity level and decreases in depression severity at 9 weeks. These increases were akin to those achieved by MSW BA. Further, increases in client activity level on the BADS scale were associated with decreases in depression. This finding is in line with prior research on Behavioral Activation as delivered by professionals that has identified increased activity and decreased avoidance as mechanisms by which the intervention reduces depression (Kanter et al., 2006; Lewinsohn et al., 1980; MacPhillamy & Lewinsohn, 1982; Manos et al., 2010).
Lastly, study data showed that coaches reported significant increases in generalized self-efficacy following participation in the study at 12 months, but not generativity or overall functioning. While prior research has documented more widespread improvements in the psychological well-being, generativity, health, and functioning of older adults from their participation in volunteer activities (Anderson et al., 2014; Gruenewald et al., 2016; Tang et al., 2010), the current study may have had a greater selection bias for high volunteer baseline functioning. Namely, rigorous interview criteria selected older adults with high levels of interpersonal skills, organizational ability, and emotional functioning. It is encouraging that coaches nonetheless reported increased self-efficacy, perhaps reflecting greater confidence achieved by applying “Do More, Feel Better” coping strategies in their own lives.
Taken together, study data provide strong support for pursuit of a fully powered study to investigate the impact of DMFB on the clinical and functional outcomes of depressed clients. While prior initiatives have integrated psychotherapy into community-based organizations (Sirey et al., 2017), “Do More, Feel Better” is the first depression-specific, lay-delivered intervention to be formally evaluated within senior centers. DMFB thus has potential as an innovative lay health-delivered intervention that may help improve access to care and address the unmet mental health needs of older adults. DMFB is consistent with task sharing approaches tested in low- and middle-income countries whereby lay health workers have effectively provided “low intensity” psychosocial interventions for depressed individuals (Gureje et al., 2019; Singla et al., 2019). Research within the U.S. has just begun to address different task sharing models within the United States (Bryant et al., 2020; Choi et al., 2020; Stanley et al., 2014), but their potential is great given limited specialist availability and other access barriers. Growing the field of nontraditional providers in the United States also offers the opportunity to enhance the racial and ethnic diversity of the geriatric workforce, benefiting the growing population of culturally diverse older adults across the country.
Study limitations include a relatively small sample size of volunteers and clients across four senior centers. Secondly, Research Assistants were blind to study hypotheses but not to intervention condition at follow-up assessment points. And while an existing volunteer infrastructure at the national level supports the potential sustainability of DMFB, implementation challenges remain in the absence of research funding (Raue, Dawson, et al., 2019a). In light of these limitations, study findings support the value of “Do More, Feel Better” as delivered by supervised lay volunteers.
Conclusions
Depression detection has increased in many aging care settings due to screening initiatives, but without a corresponding capacity to offer acceptable services to those in need. “Do More, Feel Better” was designed to draw on existing volunteer resources that can address this workforce issue, and is a feasible and acceptable intervention for depressed senior center clients. “Do More, Feel Better” has the potential to be a sustainable intervention offered by senior centers throughout the country.
Supplementary Material
Highlights:
Lay volunteers delivered “Do More, Feel Better” to fidelity standards.
Clinical outcomes were comparable to professionally-delivered Behavioral Activation.
“Do More, Feel Better” can increase access to mental health care for older adults.
Footnotes
The authors have no conflict of interest to disclose.
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Data Availability
The data generated during and/or analyzed in this study are available from praue@uw.edu on reasonable request or may be accessed via Synapse, an open access data repository, https://www.synapse.org/#!Synapse:syn25450629/files/.
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Data Availability Statement
The data generated during and/or analyzed in this study are available from praue@uw.edu on reasonable request or may be accessed via Synapse, an open access data repository, https://www.synapse.org/#!Synapse:syn25450629/files/.

