Lexical Stress Task. Conventions are similar to those in Figure 3, with these exceptions. Combined-area is the correlation between the mean listener scores and the best prediction of mean listener scores generated by application of (cross-validated) multiple regression to F0-area (based on fundamental frequency area, i.e., the product of average F0 and vowel duration), Amp-area (based on amplitude area), and Dur (duration based measure). LSR is the Lexical Stress Ratio based measure, using the same weights as in Shriberg et al. (2001).