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.
- 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