Biography of Michael H. Birnbaum Michael H. Birnbaum is currently professor of psychology and director of the Decision Research Center at California State University, Fullerton. He previously served as Assistant, Associate, and Full Professor at University of Illinois, Urbana-Champaign (1974-1988). He earned his Ph.D. at UCLA with Allen Parducci in 1972. His research interests include social psychology, judgment and decision making, research methodology, psychophysics, and mathematical psychology. He has published more than 100 scholarly works, including three books, two of which deal with psychological research via the WWW. Recent articles feature results that rule out cumulative prospect theory in favor of his configural weight models of risky decision making. Index terms: Between-subjects design, cross-cultural research, debriefing, deception, demographics of participants, ethics of experimentation, experimental control, experimental drop-outs, experimenter bias, external validity, generality of results, informed consent, internal validity, methodology, multiple submissions (participation), pilot research, privacy and confidentiality, random assignment, random response technique, recruitment of participants, risks of research, sample size, sampling, web versus lab research, web-based research, within-subjects design, World Wide Web, WWW.