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Table 8 Discrimination of the PANSS Negative Symptoms Items

From: Use of NON-PARAMETRIC Item Response Theory to develop a shortened version of the Positive and Negative Syndrome Scale (PANSS)

Criterion 1 2 3 4 5 Rating
Negative Symptoms       
N1. Blunted Affect 6 (Yes) Yes Yes Yes Yes Very Good
N2. Emotional Withdrawal 6 (Yes) Yes Yes Yes Yes Very Good
N3. Poor Rapport 6 (Yes) Yes Yes Yes Yes Very Good
N4. Passive Apathetic Social
Withdrawal
6 (Yes) Yes Yes Yes Yes Very Good
N5. Difficulty in Abstract
Thinking
6 (Yes) No No No Yes Weak
N6. Lack of spontaneity/
Flow of conversation
6 (Yes) Yes Yes Yes Yes Very Good
N7. Stereotyped Thinking 6 (Yes) Yes Yes Yes No Very Good
  1. Note. Ratings are based on operation criteria presented in Table 2.