On the Equivalence of Cohen’s Kappa and the Hubert-Arabie Adjusted Rand Index

Correction for chance agreement, Partitions, Clustering method, Matching table, Simple matching coefficient, Similarity indices, Resemblance measures,

Factors Associated with Success in Treating Chronic Drunk Drivers

This study seeks to help increase the effectiveness of chronic drunk driver treatment by examining a program with typical failure rates, and identifying what factors are associated with client success. Using the 1,665 male and female clients who were released from the program during its first 4.25 years of operation, we investigate this question in two stages. First, we extract six factors from the independent variables. Second, using the factor scores in a logistic regression analysis, we identify the characteristics that are associated with client rearrest. The results indicate that socio-economic status, criminality, and time at risk predict client success following treatment. More importantly perhaps, we find that staff prognosis, maturity, child abuse, family history of alcohol abuse, and the number of prior DUIs do not consistently predict success. The implications of these findings are discussed. © 1997 by The Haworth Press, Inc. All rights reserved

Higher-order semantic structures in an African Grey parrot\u27s vocalizations: Evidence from the Hyperspace Analog to Language (HAL) model

Previous research has described the significant role that social interaction plays in both the acquisition and use of speech by parrots. The current study analyzed the speech of one home-raised African Grey parrot (Psittacus erithacus erithacus) across three different social contexts: owner interacting with parrot in the same room, owner and parrot interacting out of view in adjacent rooms, and parrot home alone. The purpose was to determine the extent to which the subject’s speech reflected an understanding of the contextual substitutability (e.g., the word street can be substituted in context for the word road) of the vocalizations that comprised the units in her repertoire (i.e., global co-occurrence of repertoire units; Burgess in Behav Res Methods Instrum Comput 30:188–198, 1998; Lund and Burgess in Behav Res Methods Instrum Comput 28:203–208, 1996). This was accomplished via the human language model hyperspace analog to language (HAL). HAL is contextually driven and bootstraps language “rules” from input without human intervention. Because HAL does not require human tutelage, it provided an objective measure to empirically examine the parrot’s vocalizations. Results indicated that the subject’s vocalization patterns did contain global co-occurrence. The presence of this quality in this nonhuman’s speech may be strongly indicative of higher-order cognitive skills