con.tent.ious|tent-=tend-=stretch一起伸展，争论 #每日一词#

• One possibly contentious issue is the choice between fixed and random effects in the analysis.
• The choice of appropriate prior distributions is a contentious issue in Bayesian inference, especially when these priors are supposed to convey vague initial knowledge. (Sorensen et al., 1994)
• Historically, however, the most contentious question has concerned whether major genes play a major role in species differences. (SLATE, 2004)