**Background:** Black Americans have historically been considered a hard-to-reach population for research, with barriers including medical mistrust, time constraints, and socioeconomic stressors. However, most studies group all Black individuals together, ignoring within-race cultural differences. This paper addresses this gap by examining recruitment for a study on dietary practices and colorectal cancer (CRC) screening behavior among Black New Yorkers during the COVID-19 pandemic. CRC is the third most common cancer in Black men and women, and screening rates remain suboptimal. The study aimed to identify successful recruitment strategies and explore barriers to participation across diverse Black ethnic groups.
**Methods:** The study used a two-part recruitment process. Part one (November 2019–February 2020) involved building relationships with gatekeepers at churches, barbershops, and community centers in neighborhoods with large Black populations. The primary researcher (an African-American woman) established regular visitation schedules, prescreened interested individuals, and had them complete a survey on a tablet (paper copies available). Participants received $5 cash. Part two (late summer 2020, after COVID-19 shutdown) used availability sampling outside high-traffic subway stations (e.g., Atlantic Terminal-Barclays Center, 125th Street) and at community events. Eligibility: adults ≥18 years, self-identified as Black, willing to complete a survey with informed consent. Descriptive statistics were run on 497 subjects (after excluding 7 missing cases). Field notes and informal feedback from gatekeepers and participants were systematically reviewed.
**Key Results:** Total engagement was n=807. Of these, 14% (n=112) declined due to lack of time, 11% (n=85) because the $5 incentive was insufficient, 0.02% (n=23) due to distrust of research institutions, and 0.03% (n=27) due to language barriers. In part one (n=488 engaged), 29 (0.06%) declined due to lack of time, 11 (0.02%) due to distrust, and 24 (0.04%) due to insufficient incentive. After COVID-19 shutdown, of 424 who consented to recontact, 33 (78%) remained interested, 42 (0.099%) could not be reached, and 51 (12%) were uncomfortable coming to the site due to COVID. A total of 368 completed surveys from part one (331 pre-shutdown + 37 newly engaged post-shutdown). In part two (n=319 engaged), 83 (26%) declined due to lack of time, 61 (19%) due to insufficient incentive, 27 (0.084%) due to language barriers, and 12 (0.038%) due to distrust; 136 (43%) completed the survey. The final sample (n=497) was 46.1% male, 52.5% female; 38.4% African-American, 14.5% Caribbean, 9.3% African; 57.7% from Manhattan, 35.8% from Brooklyn; 23.1% aged 55–64, 22.1% aged 25–34; 38.4% had income under $20,999; 66.0% were single; 22.3% had some high school education, 19.5% had a bachelor's degree; 40.6% worked full-time, 40.8% were not working/retired. Mistrust was primarily expressed in Caribbean neighborhoods, where over 50 individuals informally mentioned comfort with home remedies and bush doctors over clinical screening.
**Clinical Implications:** The two-tiered model—combining sustained community engagement with street canvassing—proved effective for recruiting Black participants, even during a pandemic. Mistrust was a minor barrier overall (0.02%), contradicting the common narrative that historical mistrust is the primary obstacle for all Black populations. However, cultural differences emerged: Caribbean participants were more likely to decline due to language barriers and preference for traditional remedies. This suggests that future studies should develop tailored recruitment strategies (e.g., creole-language surveys, culturally sensitive messaging) and consider increasing incentives to address time and compensation concerns. The findings underscore the importance of within-race analysis to avoid overgeneralizing barriers and to improve recruitment equity.