SLPI and NGT FA
The Sign Language Proficiency Interview for American Sign Language (SLPI:ASL) was developed at the Rochester Institute of Technology, NTID. The SLPI is a one-to-one interview situation between a learner and an interviewer. The interview is video-recorded and will be analysed separately by three raters with the SLPI rating scale. At the end, the three raters have to come up with an agreed rating. More information about the SLPI can be obtained from the RIT website.
Some information about how the SLPI:ASL was adapted for Sign Language of the Netherlands (NGT) for use in the teacher/interpreter program at Hogeschool Utrecht, University of Applied Sciences, is also available on the ECML ProSign website. The Dutch adaptation is called NGT Functional Assessment (NFA).
See below for further information on the various resources on the NGT version of the SLPI.
NGT Functional Assessment (NFA) Rating Scale
The Sign Language Proficiency Interview (SLPI): Description And Use
With Sign Language Of The Netherlands
Preliminary Collaborative Steps in Establishing CEFR Sign Language Levels
Determining aspects of text difficulty for the Sign Language of the Netherlands (NGT) Functional Assessment instrument
SLPI and NFA-adaptation to NGT 2017
The Sign Language Proficiency Interview: description and use with Sign Language of the Netherlands