Hilari and Northcott (2006) used a Social Support Survey (SSS) to gauge how well supported individuals suffering from stoke-induced aphasia (a language disorder) felt more than one year following the stroke. They reported that "in terms of social support, the SSS scores were negatively skewed with a mean of 3.69, suggesting that participants felt overall well supported" (Hilari & Northcott, 2006, p. 17). Based on their findings, what additional measure of central tendency would be appropriate to report with these data? Explain.