Figure 9
From: PepMusic: motivational qualities of songs for daily activities
User ratings for songs per three confidence score ranges for each activity group. Participants rated how good the recommended songs were for a given activity group. Answers were given on a 5-point Likert scale. The confidence score range is divided into low: [0,0.33), mid: [0.34, 0.66), and high: [0.67, 1.00]. The error bars indicate the standard error of the mean. Statistical analysis detected significant differences across three confidence score ranges for the calm category and the intense category, but did not detect any significant differences for the vibrant category