The Internet is a scary place: How does evidence source and examinee race or ethnicity influence determinations of threat?

Violent rhetoric online is becoming increasingly relevant to the practice of forensic mental health assessment as examinee's virtual lives may transform into real-world acts of violence. With the rise of a diverse subculture of violent online communities, the aim of the present study was to inform how concerns with online sources of collateral data and racial/ethnic biases may influence determinations of violence potential. Using an experimental design, jury-eligible participants (N = 278) and forensic mental health experts (N = 78) were presented with mock Twitter (now referred to as X) posts that varied by data source (i.e., how information was accessed) and the examinee's race/ethnicity. Results showed no differences in participants' ratings of data credibility, how much weight they would place on the posts in a threat assessment, or how likely the examinee was to act violently against his intended target. Implications regarding the interpretation of social media evidence, relevant limitations, and future research are discussed.     

Modifying law enforcement training simulators for use in basic research

Several approaches to using simulation as a method for teaching good judgment in the use of firearms by law enforcement officers and military personnel were investigated for their potential applications to research: the GAMMA Live Fire Video Training System, the FireArms Training Systems Simulator (FATS), and the Judgment Under Stress Training (JUST) simulator. Each instrument uses real-time, computer-controlled, life-sized projected video images of scenarios that may or may not present a threat, and handguns that fire real or simulated ammunition. The subjects respond to a sequence of “shoot/no-shoot” judgment scenarios resulting in data on judgment, reaction time, and accuracy. The JUST simulator was found to be more easily modifiable in capturing data on performance at microanalytic levels. Although true interactive simulations are not feasible with this system, this was not seen as a hindrance to its usefulness for research.     

Probability as a Theory Dependent Concept

It is argued that probability should be defined implicitly by the distributions of possible measurement values characteristic of a theory. These distributions are tested by, but not defined in terms of, relative frequencies of occurrences of events of a specified kind. The adoption of an a priori probability in an empirical investigation constitutes part of the formulation of a theory. In particular, an assumption of equiprobability in a given situation is merely one hypothesis inter alia, which can be tested, like any other assumption. Probability in relation to some theories – for example quantum mechanics – need not satisfy the Kolmogorov axioms. To illustrate how two theories about the same system can generate quite different probability concepts, and not just different probabilistic predictions, a team game for three players is described. If only classical methods are allowed, a 75% success rate at best can be achieved. Nevertheless, a quantum strategy exists that gives a 100% probability of winning. This revised version was published online in June 2006 with corrections to the Cover Date.     

Stability and change in types of behavioral disturbance of children and adolescents

Changes with aging and stability of dimensions of behavioral disturbance were determined for 732 children and adolescents who constituted the sample reassessed after 5 years of an original cross-sectional sample of Manhattan youth 6 to 18 years old. On three of the six types of disturbance strongly related to the total impairment judgments of psychiatrists, specifically those tapping domains of aggression, greater or constant levels of pathology were noted over time. Cross-sectional versus longitudinal analyses on the same types of disturbance had discrepant results half the time. Stability coefficients for five of the six types of disturbance were greater than .55. Stability curves by age cohorts investigated whether a type of disturbance appeared transitory at certain age periods but more crystallized at other ages. Its prognostic significance would vary accordingly. Implications for intervention-treatment and for studies comparing the predictive value of different classes of behavior, e.g., neurotic versus antisocial, are discussed.This investigation was supported by U. S. Public Health Service Project Grants MH-11545 and MH-18260 of the National Institute of Mental Health, Center for Epidemiological Studies. Support for the principal investigator was given by Career Scientist Grants I-338 and I-640 of the Health Research Council of the City of New York. The principal investigator is currently supported through Research Scientist Award K5-MH-20868 of the National Institute of Mental Health.This research was presented in part at the Eastern Psychological Association Meetings, April 3–5, 1975, New York City.     

A test of constancy scaling theory in a modified Mueller-Lyer illusion

The center line of each of the two Mueller-Lyer figures was replaced by a rectangle whose length and width were both judged. The rectangle, bounded by wings positioned outward, was judged both longer and narrower than a standard rectangle of equal size, while the rectangle bounded by wings oriented inward was judged to be both shorter and wider than the standard rectangle. These results were considered to provide evidence against a constancy scaling explanation of geometric illusions. Other theories to account for the results were considered and found inadequate.     

The effect of enactment upon sentence imitation in preschool children

Preschool children imitated two matched lists of sentences varying in length, in syntactic complexity, and in semantic complexity. Sentences on one list were acted out with toys prior to imitating them. For 3-year-olds, enactment increased retention of all sentential variables: number of words, number of frames, number of propositions, and syntax. For children younger than 3 years, enactment increased only the number of words retained, while for children older than 4 years, enactment had a minimal effect on all sentential variables. In a second experiment, prior enactment had long-term effects on the degree to which children's spontaneous stories about the toys resembled the previous sentences that they had been given to imitate. Long-term effects, however, did not extend to retention of syntax. Enactment appears to increase both young children's interest in a sentence imitation task and the amount of semantic encoding in which they engage. Its effect, however, is mediated by the degree of mastery of relevant linguistic rules.Some of these data were presented at the Biennial Meeting of the Society for Research in Child Development, Detroit, April 1983. The authors would like to thank Lorraine Chiasson, Judith Codd, and Susan Saba for their assistance with the data analysis.     

Changes in stuttering in relation to children's locus of control

The locus of control of stuttering children before, during, and after treatment for dysfluency was investigated. Subjects participated in a one-week program combining delayed auditory feedback and training of parents to negotiate and implement contracts for their child's practice of stutter-free speech skills. The Children's Nowicki-Strickland Scale was used to measure locus of control before, immediately after, two months after, and six months after the training. Measures of speech dysfluency were available at each of these times and documented the effectiveness of treatment in reducing stuttering. The locus of control scores for stuttering children prior to treatment were comparable to normative groups. Internality on the locus of control measure prior to treatment was directly related to degree of change in dysfluency immediately following the one-week clinic, but not to dysfluency levels at the 2-month or 6-month follow-up sessions. Concomitant with improved speech, the children became progressively more internal following treatment. The results suggest that participation in a behavioral program for the treatment of stuttering increases internality.     

Measuring social skill in grade school boys

This study examined positive and negative assertive skill in 60 elementary school boys, grades 3–8. Subjects' role-played responses to standard analogue situations requiring expression of positive and negative assertion were videotaped and rated retrospectively. High- and low-assertive subjects were identified through ratings of overall assertiveness. Results of this study indicate that (1) high- and low-assertive subjects differ on a number of response components which are related to age level and type of assertive situation (positive vs. negative), (2) assertive skill is associated with role-taking (or decentering) ability, (3) teachers tend to perceive their assertive boys as more sociable and interpersonally sensitive than unassertive boys, (4) there is essentially no correlation between teachers' ratings of aggressiveness and separate behavioral ratings of assertive skill, and (5) behavioral ratings of assertiveness show little relationship to self-report or teachers' ratings of assertiveness.This article is based on a dissertation submitted to the Faculty of the Graduate School of Loyola University of Chicago in partial fulfillment of the requirements for the Degree of Doctor of Philosophy. The study was conducted under the direction of the second, third, and fourth authors.     

Metalexical Awareness: Development, Methodology or Written Language? A Cross-linguistic Comparison

This study explores the ability to access word boundaries of pre-school children, using an on-line methodology (Karmiloff-Smith, Grant, Sims, Jones, & Cockle (1996). Cognition, 58, 197–219.), which has hardly been used outside English-speaking countries. In a cross-linguistic study in the Netherlands and Norway, four and five-year-old children were asked to repeat the last word every time a narrator stopped reading a story. In total 32 target-words were used, both closed and open class words, and both monosyllabic and disyllabic words. The outcomes in both countries were different from those of the original English study (Karmiloff-Smith et al., 1996): four- and five-year-olds were successful in only about 26% of the cases, whereas the success rate in the former English experiment was 75% for the younger and 96% for the older children. No differences were found between age groups and between open and closed class words. This methodology does reveal the ability to access word boundaries, but probably not because of the ease of the on-line methodology in itself, but rather because literacy introduces new representations of language, even in on-line processing. The outcomes implicate that the ability to mark word boundaries does not seem to be a valid indication of who is ready for reading.     

Risk perceptions, worry, and attitudes about genetic testing for breast cancer susceptibility

This study assessed the unique associations of risk perceptions and worry with attitudes about genetic testing for breast cancer susceptibility. Women (general practitioner clinic attenders, university students, and first-degree relatives of breast cancer survivors; N?=?303) read information about genetic testing and completed measures assessing perceived cancer risk, cancer worry, and genetic testing attitudes and beliefs. Worry was associated with greater interest in genetic testing, stronger beliefs that testing has detrimental emotional consequences, and positive beliefs about benefits of testing and risk-reducing surgeries. Perceived risk was unrelated to interest and associated with more skeptical beliefs about emotional consequences and benefits of testing and risk-reducing surgeries. At low worry levels, testing interest increased with more positive beliefs about testing benefits; at high worry levels, interest was high regardless of benefits beliefs. The findings support Leventhal's Common-Sense Model of self-regulation delineating interactive influences of risk-related cognitions and emotions on information processing and behavior.