Fig. 1. The CMS as used in the validation sample. Subjects draw a line from the center of the circle to the location on the periphery best representing their predominant mood at the time of recording. The angle (
) between the line and the horizontal that connects the center of the circle with "happy/friendly" (measured counterclockwise) represents the mood score; eg, "active/attentive" = 90°. Subjects place a second mark on the line reflecting the intensity of the mood. Intensity scores were not used in the data analyses for this report. Note: the faces of the CMS were computer-generated, with the curvature of the mouth reflecting the degree of pleasantness (cos ) and the width of the eyes and mouth reflecting the degree of engagement (sin ).
