Brown, C., Snodgrass, T., Covington, MA (2007a) CPIDR 3.2 (Computerized Propositional Idea Density Rater). Open-source software available from http://www.ai.uga.edu/caspr .
2.
Brown, C., Snodgrass, T., Kemper, SJ, Herman, R., Covington, MA (2007b) Automatic measurement of propositional idea density from part-of-speech tagging. Behavior Research Methods40: 540-545.
3.
Covington, MA (2007) CPIDR 3 User Manual. Research Report 2007-03, CASPR , Artificial Intelligence Center, The University of Georgia , http://www.ai.uga.edu/caspr.
4.
Covington, MA, Riedel, WJ, Brown, C., He, C., Morris, E., Weinstein, S., et al. (2007) Does ketamine mimic aspects of schizophrenic speech? J Psychopharm21: 338-346.
5.
Murray, HA (1971) Thematic Apperception Test. Cambridge, MA: Harvard University Press.
6.
Turner, A., Greene, E. (1977) The Construction and Use of a Propositional Text Base. Technical Report No. 63, Institute for the Study of Intellectual Behavior (now Institute of Cognitive Science), University of Colorado . Available from http://ics.colorado.edu/techpubs/pdf/77-63.pdf, accessed 2008.