The researchers from the previous question want to be sure that their results are true, even after accounting for a range of control variances. (1) What kind of analysis would they need to do in order to test this? Further, (2) provide them a suggestion of a potential control variable and (3) explain why it's an appropriate control variable. For the toolbar, press ALT.FIO (PC) or ALT.FN+F10 (Mac). B I US Paragraph Arial 10pt V AV & v