“…For example, although the majority of U.S. guidelines employ a grid-based structure, rationales behind implementing guidelines are much less standardized. Justifications include minimizing sentence disparity by extralegal factors (Martin, 1984), controlling "unfettered" judicial discretion (Miethe & Moore, 1985), reducing escalating prison populations (Kirkpatrick, 1992), enhancing penalties, and becoming "tough on crime" (Truitt, Rhodes, Kling, & McMullen, 2001). Moreover, some systems have clear, unambiguous objectives, whereas others have multiple, conflicting goals (Wooldredge & Griffin, 2005).…”