1. Scales for assessing negative symptoms;Andreasen,1983
2. Scales for assessing positive symptoms;Andreasen,1984
3. Higher scores of self reported schizotypy in healthy young males carrying the COMT high activity allele;Avramopoulos;Molecular Psychiatry,2002
4. Measurement models for ordered categorical indicators in structural equation modeling;Bovaird,2012
5. Confirmatory factor analysis for applied research;Brown,2006