Comparisons of methamphetamine psychotic and schizophrenic symptoms: A differential item functioning analysis

• Main Authors: Srisurapanont M., Arunpongpaisal S., Wada K., Marsden J., Ali R., Kongsakon R.
• Format: Journal
• Published: 2017
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79956040605&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/43058
• Institution: Chiang Mai University

The concept of negative symptoms in methamphetamine (MA) psychosis (e.g., poverty of speech, flatten affect, and loss of drive) is still uncertain. This study aimed to use differential item functioning (DIF) statistical techniques to differentiate the severity of psychotic symptoms between MA psycho...