The 100-point scale was used for any test taken prior to July 15, 2019.
The 160-point scale is used for any tests taken from July 15, 2019 onward.
The 100-point scale is in increments of 1 point, and the 160-point scale is in increments of 5 points.
The scale changed to account for new scored test items and scoring methodology. The new scale has higher confidence at individual score points, helps reduce misinterpretation of scores, and distinguishes Duolingo from other tests.
For more information about scores, visit our scores page.