What the test measures
The key widths are the forehead at the hairline, the cheekbones at their widest point, and the jawline at its widest point, plus the overall length-to-width ratio of the face. An oval profile is close to 1.5:1; a round profile is closer to 1:1; a heart profile is widest at the forehead; a diamond is widest at the cheekbones; an oblong is clearly longer than it is wide; and a square has roughly equal widths with strong angles.
