“…In our review, we identified three main CHW competencies that were assessed: knowledge, skills, and traits. All but one of the studies (29 of 30) (Balcazar et al, 2006; Bouchonville et al, 2018; Boutin-Foster et al, 2008; Bustillos & Sharkey, 2015; Colleran et al, 2012; Cornell et al, 2009; Cruz et al, 2013; Ferguson et al, 2007; Han et al, 2007; Harvey et al, 2009; Hill-Briggs et al, 2007; Josiah Willock et al, 2015; Kuhajda et al, 2006; Lautner et al, 2019; Look et al, 2008; Martinez-Bristow et al, 2006; Moleta et al, 2017; Policicchio & Dontje, 2018; Prezio et al, 2013; Pullen-Smith et al, 2008; Swider et al, 2010; Tang et al, 2011; Valen et al, 2012; Vaughan et al, 2020; Wagner et al, 2020; Walton et al, 2012; Woodruff et al, 2010; Zurawski et al, 2016) assessed knowledge with written assessments using multiple-choice test, true/false, fill-in-the-blanks, short answers, oral question and answers, surveys, and/or open-ended questionnaire formats. Seventeen studies also assessed CHW traits such as self-efficacy (Bouchonville et al, 2018; Boutin-Foster et al, 2008; Bustillos & Sharkey, 2015; Colleran et al, 2012; Cornell et al, 2009; Kuhajda et al, 2006; Swider et al, 2010; Tang et al, 2011); confidence (Ferguson et al, 2012; Josiah Willock et al, 2015; Martinez-Bristow et al, 2006; Zurawski et al, 2016); self-care skills (Balcazar et al, 2006); attitudes (Kuhajda et al, 2006; Wagner et al, 2020; Zurawski et al, 2016); behaviors (Cornell et al, 2009; Kuhajd...…”