“…For example, the inclusion of some sources without clear sample sizes (e.g.,Rahmalia & Zulyadi, 2019) prevents the use of a weighting scheme based on their sample size when making comparisons between studies. Because of the wide range of incomes that some panhandlers receive (Conroy, 2001; Goldstein, 1993; Luckenbach & Acosta, 1993; Wamstad, 2007), sources that rely on small samples are susceptible to having extreme values compared to studies that report average values among larger samples (e.g., Bose & Hwang, 2003; Lee & Farrell, 2003; Lein et al, 2008). Similarly, considerable variation exists regarding how income is reported with some studies providing a range (Goldberg, 1995; Jamil et al, 2019), varying measures of central tendency (Bose & Hwang, 2003; Conroy, 2001; Lee & Farrell, 2003), or as an ordinal variable (Malik & Roy, 2012; Mansour, 2017).…”