Personal Values Questionnaire II (PVQ II) is a scale that measures the value of "value", which is the core process of ACT, and the behavior along with the value in each area of life. PVQⅡ has an 8-item 3-factor structure.
Rimi Doi, Kengo Yokomitsu, Yuji Sakano (2014). Verification of the internal consistency and validity of Personal Values Questionnaire II. Behavior Therapy Research, 40 (1), 45-55.
The PVQ II Japanese version is on the ACBS Japan Chapter website.