05/05/2021 – Version A.21.05

Version A.19.12 is the first version for the Chinese (Mandarin) Speaking Assessment. We conducted a calibration pilot to determine the item and ability parameters to create an assessment form and accompanying scoring algorithm to best predict Chinese (Mandarin) speaking ability.

NOTE: Which user confirms the update to this version will be recorded in the version history.

Technical Details

What’s improved

  • Used Rasch infit/outfit statistics to screen calibration data to the most informative items and response patterns
  • Incorporated regression model to predict ability with a high-degree of reliability