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203, Barrackpore Trunk Road,
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PSYCHOLOGY RESEARCH UNIT


SPEAKER : Warren A. Reich, Ph.D., The Family Center, New York, NY, and Rutgers -- The State University of New Jersey, Newark, New Jersey

TITLE : Hierarchical Classes Analysis in Applied Psychology Research

VENUE : Population Studies Unit, 5th Floor, Main Building.
DATE : July 7th , Thursday, 2005
TIME : 3:00 P.M.

Hierarchical Classes (HICLAS) is a two-way, two-mode algorithm for modeling binary data into superset and subset categories (De Boeck & Rosenberg, 1988; Van Mechelen, De Boeck, & Rosenberg, 1995). This method has been used extensively in the study of personality, identity, social perception, autobiography, social networks, psychopathology, and clinical diagnosis (for reviews, see De Boeck, Rosenberg, & Van Mechelen, 1993, and Rosenberg, 1997). In this presentation I discuss the use of HICLAS in three settings. First, in studies on personal identity (Reich, Harber, & Siegel, in preparation; Reich, Mazzarella, Spence, & Siegel, in press), HICLAS was used to idiographically model (a) college students' and (b) first-time mothers' descriptions of self in several social roles. In both samples the interaction between two HICLAS-derived properties, self-congruence and negative elaboration, predicted scores on the Beck Depression Inventory. Second, HICLAS was used to model survey data from a civil court in California (Reich, Kressel, Scanlon, & Weiner, under review). HICLAS confirmed the existence of two hypothesized classes of items; litigants who answered "yes" to both sets of items were more likely to pursue mediation as an alternative to a court hearing. Third, HICLAS was used in a nonprofit agency that provides services to HIV+ clients seeking to form legal plans for the future care of their children (Reich & Hudis, in press). This analysis revealed that clients who used both psychotherapy and legal services classes that were clearly identified by HICLAS were more likely to complete a plan than clients using legal services alone. I will conclude with a demonstration of Individual Differences HICLAS (INDCLAS), a recently developed threeway threemode version of HICLAS, and open a dialogue on the possible uses of HICLAS in applied settings in India, e.g., education.




All are cordially invited.
Anjali Ghosh.
(Convener).

Date: July 6, 2005.

List of Seminars

References: De Boeck, P., & Rosenberg, S. (1988). Hierarchical classes: Model and data analysis. Psychometrika, 53, 361-381.

De Boeck, P., Rosenberg, S., & Van Mechelen, I. (1993). The hierarchical classes approach: A review. In I. Van Mechelen, J. Hampton, R. Michalski, & P. Theuns (Eds.), Categories and concepts: Theoretical views and inductive data analysis (pp. 265-286). London: Academic Press.

Reich, W. A., & Hudis, J. (in press, Journal of HIV/AIDS and Social Services). Assessing clients' progress through a permanency planning program: A hierarchical classes analysis.

Reich, W. A., Mazzarella, B. A., Spence, J. M., & Siegel, H. I. (in press, Journal of Psychology: Interdisciplinary and Applied). Self-structure and postpartum dejection in first-time mothers.

Rosenberg, S. (1997). Multiplicity of selves. In R. D. Ashmore, & L. Jussim (Eds.), Self and identity: Fundamental issues. Rutgers series on self and social identity (Vol. 1, pp. 23-45). New York: Oxford University Press.

Van Mechelen, I., De Boeck, P., & Rosenberg, S. (1995). The conjunctive model of hierarchical classes. Psychometrika, 60, 505-521.