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Stylometry assumes that the essence of the individual style of an author can be captured using a number of quantitative criteria, such as the relative frequencies of noncontextual words (e.g., or, the, and, etc.). Several statistical methodologies have been developed for authorship analysis. Jockers et al. (2009) utilize Nearest Shrunken Centroid (NSC) classification, a promising classification methodology in DNA microarray analysis for authorship analysis of the Book of Mormon. Schaalje et al. (2010) develop an extended NSC classification to remedy the problem of a missing author. Dabney (2005) and Koppel et al. (2009) suggest other modifications of NSC. This paper develops a full Bayesian classifier and compares its performance to five versions of the NSC classifier using the Federalist Papers, the Book of Mormon text blocks, and the texts of seven other authors. The full Bayesian classifier was superior to all other methods.

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This study used personal interviews with Turkish female grocery shoppers to determine their shopping behaviors and attitudes. The sample was divided into two groups: deliberate and nondeliberate shoppers. The two groups were then compared in terms of their sociodemographic characteristics, importance placed on patronage motives, purchase location of selected grocery products, and their attitudinal orientations. Results are outlined and implications discussed.

In the course of a forensic evaluation, psychologists often rely on personality inventories to provide information that is useful in making recommendations regarding case disposition (parole, treatment, etc.). The purpose of this study was to evaluate the ability of four scales from the Personality Assessment Inventory (PAI) to distinguish between youthful criminal offenders and non-offenders. The scales focused on in this study were Paranoia (PAR), Traumatic Stress (ARD-T), Alcohol Problems (ALC) and Drug Problems (DRG). Twenty-five youthful offenders incarcerated in the California Youth Authority comprised the offender group and 25 students at a California Community College comprised the non-offender group. The subjects were matched for age (male) and gender. The offender group was administered the Personality Assessment Inventory on an individual basis while incarcerated at the California Youth Authority. Permission was obtained to use selected protocols as archival data for this investigation. The non-offender group was administered the Personality Assessment Inventory in a group setting while attending a mathematics class at a community college. Independent samples t-tests demonstrated that the Drug Problems scale was the only one of the four scales which indicated a significant difference between the two groups (p < 0.05). Discriminant analysis yielded a significant discriminant function accounting for 22.5% of the variability in the scores. The primary contributors to that function were Drug Problems and Alcohol Problems. The finding that the Alcohol Problems and Drug Problems scales did not both significantly distinguish the offender and non-offender group is discussed in light of other personality inventories' use of a single scale to evaluate alcohol and other drugs. Further implications for theory and practice and suggestions for further research are discussed.

The sexing of human skeletal remains is important for identification and demographic purposes. It is made more difficult when elements such as the skull and pelvis are not recovered or are in too poor of a condition to assess. Previous studies have used carpal (wrist) bones of contemporary populations to assess the viability of these skeletal elements exhibiting sexual dimorphism, as these bones are small, compact elements that are usually recovered in good condition. This study evaluates the use of carpal bones recovered from an ancient Maya population from Belize to determine the biological sex of individuals. The study sample is part of the Maya Archaeological Skeletal Collection (MASC), which contains individuals from the sites of Lamanai, San Pedro, Altun Ha, and Marco Gonzalez and dates from the Late Maya Pre-Classic (400 BC-AD 250) to the Spanish Colonial period (AD 1521-1821). Multiple measurements were taken on 36 capitate, 34 lunate, 34 scaphoid, 27 trapezium, 24 hamate, 22 triquetral, 22 trapezoid, and 16 pisiform bones from several individuals. Discriminant function analysis was used to determine if sexual dimorphism is measurable in this population using these elements. Previous studies used populations with known identities, assessing individuals from crypts, graveyards, or medical collections from the last few centuries. This study varies from previous studies as it utilizes archaeological remains, making this study one of the first to evaluate non-contemporary remains with unknown sex. Results of this study demonstrate that this population exhibits sexual dimorphism and discriminant function analysis can be used to distinguish between two groups. This demonstrates that carpals could be used to help determine biological sex of archaeological populations as well as a tool to help with identification in forensic cases.

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