Treason and trial : consuetudines and law in the romances of Chrétien de Troyes and the lais of Marie de France

Treason, in the romances of Chrdtien de Troyes and the lais of Marie de France, is explored more often as afin' amor problem than as a legal issue with its concomitant sociopolitical ramifications. It is precisely the historical function of literature within the ambit of court culture that appears to have shaped the legal context of the poems of Chrdtien de Troyes and the lais of Marie de France. Counterpoising the literary treatment of treason in Le Chevalier au Lion and Lanval with actions and definitions of treachery by contemporary, twelfth-century chronicle and customary law sources reveals that the conceptualized, fictional world of Chrdtien's Yvain closely reflects the workings of the Capetian society Chretien experienced. Marie's Lanval reflects as well the historical impressions of the Angevin court with which she had familiarity, a court whose concept of treason leaned more toward the maiestas concept found in Roman jurisprudence tradition.

Sequential Logistic Regression: A Method to Reveal Subtlety in Self-Efficacy

This paper uses self-efficacy to predict the success of women in introductory physics. We show how sequential logistic regression demonstrates the predictive ability of self-efficacy, and reveals variations with type of physics course. Also discussed are the sources of self-efficacy that have the largest impact on predictive ability.