Factor structure of the Wechsler Adult Intelligence Scale-III in schizophrenia

This report examines and compares the factor structure of the new edition of the Wechsler Adult Intelligence Scale (WAIS-III) in a sample of chronic schizophrenia and schizoaffective disorder outpatients (n = 120) and an age-matched sample of individuals drawn from the WAIS-III standardization sample (n = 200). Exploratory and confirmatory factor analyses similar to those reported by the developers of the scale suggested that a model of WAIS-III performance with correlated factors for verbal comprehension, perceptual organization, working memory, and processing speed fit the data from the schizophrenia sample as well as it fit the nonclinical comparison sample and fit the data from both samples better than alternative models.     

Death-Related Crime: Applying Bryant’s Conceptual Paradigm of Thanatological Crime to Serial Homicide

The study of death within the field of sociology is expansive yet despite this research there is a lack of inquiry within the area of crime and deviance on the topic of thanatological crime. One researcher that has conducted an analysis of this topic is Bryant (2003). In his exposé on thanatological crime, Bryant (2003) developed a conceptual paradigm of death-related crime that consisted of four motivational categories and two patterns of victimization. Using data from the Radford/FGCU Serial Killer Database (Aamodt 2013), this article extends and applies the conceptual paradigm of thanatological crime to serial homicide.     

Validation of the Peer Social Maturity Scale for Assessing Children's Social Skills

We evaluated the utility of a brief, seven‐item, teacher‐rated Peer Social Maturity Scale (PSMAT). In Study 1, teachers of 138 Australian children (ranging from 5 to 8 years and 5 months old) in kindergarten and Grades 1 and 2 rated their pupils' social maturity using the PSMAT and their classroom social skills via the Social Skills Rating System (SSRS). The PSMAT showed excellent internal consistency and a significant overall correlation with the SSRS social skills scale. Study 2 involved a new longitudinal sample of children who were rated by different classroom teachers in kindergarten and Grades 1 and 2 of full‐time primary school. Consistent with Study 1, at all three time points, PSMAT scores were highly correlated with SSRS social skills scores. PSMAT scores also correlated significantly with peer‐rated social preference. These studies confirm that the PSMAT is a reliable and valid assessment of children's social maturity within their classroom peer groups. Copyright © 2013 John Wiley & Sons, Ltd.     

Brief Book,Software, and Test Announcements

This study extended previous cross-cultural work regarding the tripartite model of anxiety and depression by developing Serbian translations of the Positive and Negative Affect Scale for Children (PANAS–C), the Physiological Hyperarousal Scale for Children (PH–C), and the Affect and Arousal Scale (AFARS). Characteristics of the scales were examined using 449 students (M age = 12.61 years). Applying item retention criteria established in other studies, PH–C, PANAS–C, and AFARS translations with psychometric properties similar to English-language versions were identified. Preliminary validation of the scales was conducted using a subset of 194 students (M age = 12.37 years) who also completed measures of anxiety and depression. Estimates of reliability, patterns of correlations among scales, and age and gender differences were consistent with previous studies with English-speaking samples. Findings regarding scale validity were mixed, although consistent with existing literature. Serbian translations of the PH–C, PANAS–C, and AFARS mirror the original English-language scales in terms of both strengths and weaknesses.     

Rapid Error Correction During Human Arm Movements

Studies were made of rapid error correction movements in eight subjects performing a visually guided tracking task involving flexion-extension movements about the elbow. Subjects were required to minimize reaction times in this two-choice task. Errors in initial movement direction occurred in about 3% of the trials. Error correction times (time from initiation to reversal of movement in incorrect direction) ranged from 30-150 ms. The first sign of correction of the error movement was a suppression of the electromyographic (EMG) activity in the muscle producing the error movement. This suppression started as early as 20-40 ms after the initiation of the error-related EMG activity and as much as 50 ms before any overt sign of limb movement. The correction of the error movement was also accompanied by an increase in the drive to the muscle which moved the arm in the correct direction. This increased activity always occurred after the initiation of the error movement. It is concluded that the first step in the error correction, suppression of drive to the muscle producing the error movement, cannot be based on information from the moving limb. It is thus suggested that this earliest response to the error movement is based on central monitoring of the commands for movement.     

Studying radical organizational innovation through grounded theory

The main aim of this article is to study the social processes occurring during the implementation of radical organizational innovation. Our aim is to understand the nature of the development of radical innovation by identifying the social processes, that are taking place. The perspective for the analysis stems from “grounded theory” as a generative and inductive analytical strategy (Glaser & Strauss, 1967). An in-depth case study was thoroughly analysed. A total of 14 indepth interviews were conducted with key informants selected according to “theoretical sampling” criteria. The systematic use of the “constant comparative method” allowed us to differentiate grounded theories leading to a “conceptual saturation” of the categories generated from the empirical data. Results show the emergence of two basic processes, “learning” and “adaptation”, during the development of radical innovation. A “grounded” theory concerning the development of radical innovation is proposed, emphasizing the organization's selfregulating capacity for learning and adapting. Our results describe innovation as an adaptable response that causes disorder in terms of “a creative tension in the system”. Finally, the methodological implications of grounded theory are discussed with regard to the study of radical innovation. The requisites and limitations observed in using grounded theory are outlined.