Self-ratings and judges' ratings of heterosexual social anxiety and skill: A generalizability study.

The performance of 79 male undergraduates in 2 heterosexual social situations was rated by questionnaires (including the Social Anxiety and Skill Questionnaire), self-ratings in role plays, self-ratings of videotapes of role plays, ratings by confederates, and ratings of videotaped role plays by judges. These ratings were characterized with respect to mode, method, and situation facets; the consistency of ratings was obtained under different conditions of these facets, which were investigated by use of a generalizability approach in which estimates of variance components and generalizability coefficients were calculated. Self-report and judges' ratings of anxiety and social skill based on a fairly large number of observations were found to be at best moderately generalizable across the various facets investigated; the relationship between anxiety and skill was found to vary considerably among the various methods; substantial proportions of variance, indicative of level differences, were found within judges for anxiety ratings and within judges and methods for skill ratings; and substantial proportions of variance were influenced by mode of measurement. The implications of these findings for obtaining reliable ratings of heterosexual social anxiety and skill are discussed. (24 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ecological validity of role plays for assessing heterosocial anxiety and skill of male college students.

Examined the ecological validity of role-played dating interactions. 45 male undergraduates, categorized into low-, medium-, and high-frequency dating groups (Social Activity Questionnaire), participated in 4 heterosexual social (heterosocial) situations in a laboratory. Two situations were role plays simulating dating interactions, and 2 were more naturalistic waiting-period interactions. Controls for confederate familiarity and role-play order were used. Judges rated Ss as more skillful in role plays than waiting periods and rated low-frequency daters as more anxious than high-frequency daters. High-frequency daters rated themselves as more skillful than did low-frequency daters. Ss rated the waiting-period interactions as more like "real life" and their behavior in waiting periods as more representative of everyday heterosocial interactions. However ANOVAs did not result in major differences between role plays and waiting periods, and correlational analyses indicated that the relative ranking of Ss was similar in role plays and waiting periods. Implications for the use of role-play assessments in the heterosocial skill area are discussed. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Personality determinants of repressive and obsessive reactions to failure-stress.

The data from indices measuring the concepts of ego-strength, need for achievement, and hysteria were factor-analyzed. The analysis produced 5 orthogonal dimensions, viz., neuroticism, intellectual flexibility, extraversion, other-orientation, and perseverance for achievement. These factors were then correlated with performance in a task which involved the memory of a Zeigarnik-type failure-stress experience. The factor related to striving for achievement and quality of recall of the experience of failure were highly correlated, with high need achievers reacting "obsessively" and low need achievers, "repressively" (as defined in the report). The results are discussed re: the theoretical implications of this and previous research. 25 refs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sociocognitive self-regulatory mechanisms governing transgressive behavior.

This longitudinal research examined a structural model of the self-regulatory mechanisms governing transgressive conduct. Perceived academic and self-regulatory efficacy concurrently and longitudinally deterred transgressiveness both directly and by fostering prosocialness and adherence to moral self-sanctions for harmful conduct. The impact of perceived social self-efficacy was mediated through prosocialness. Moral disengagement and prosocialness affected transgressiveness through the mediating influence of irascible affectivity and hostile rumination. Ruminative affectivity, in turn, both concurrently and longitudinally affected transgressiveness. Moral disengagement also contributed independently to variance in transgressiveness over time. This pattern of relations was obtained after controlling for prior transgressiveness. The structural model was replicated across gender and provided a better fit to the data than did several alternative models. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Obituary: Margret M. Baltes (1939–1999).

Memorializes Margret M. Baltes, who contributed to research in psychological gerontology. Baltes' life work centered on individuals' successful self-management of aging by social means, under constraining life circumstances, and some diminution of physical capacity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Considerations about sample-size sensitivity of a family of editednearest-neighbor rules

The edited nearest neighbor classification rules constitute a valid alternative to k-NN rules and other nonparametric classifiers. Experimental results with synthetic and real data from various domains and from different researchers and practitioners suggest that some editing algorithms (especially, the optimal ones) are very sensitive to the total number of prototypes considered. This paper investigates the possibility of modifying optimal editing to cope with a broader range of practical situations. Most previously introduced editing algorithms are presented in a unified form and their different properties (acid not just their asymptotic behavior) are intuitively analyzed. The results show the relative limits in the applicability of different editing algorithms.     

“Once is Enough” in Radiometric Calibrations

The successful development of an Optical Technology Division quality system for optical radiation measurement services has provided the opportunity to reconsider the existing calibration procedures to improve quality and reduce costs. We have instituted procedures in our calibration programs to eliminate uninformative repetitive measurements by concentrating our efforts on controlling and understanding the measurement process. The first program in our calibration services to undergo these revisions is described in this paper.     

Separation and Identification of Tocotrienol Isomers by HPLC-MS and HPLC-NMR Coupling

A crude palm-oil extract rich in vitamin E homologues was investigated by HPLC-MS and HPLC-NMR coupling. For mass spectrometry a newly introduced ionization technique called Coordination Ion Spray (CIS) was used. Through the addition of silver ions to the HPLC eluent, the ionization process of nonpolar substances is facilitated. Chromatography and all coupling experiments were conducted on a C(30) column which exhibited an extraordinary shape selectivity and overwhelming sample-loading capability. Experiments were performed with pure methanol as an eluent which proved to be ideal for NMR spectroscopy as well as mass spectrometry. All necessary information for unambiguous structural assignment was collected within 45 min of the LC-NMR experiment and 15 min of the LC-MS experiment. Six compounds were identified, i.e., α-, β-, γ-, and δ-tocotrienol, α-tocoenol, and α-tocopherol.     

Experimental determination of the lidar overlap profile with Raman lidar

The range-dependent overlap between the laser beam and the receiver field of view of a lidar can be determined experimentally if a pure molecular backscatter signal is measured in addition to the usually observed elastic backscatter signal, which consists of a molecular component and a particle component. Two methods, the direct determination of the overlap profile and an iterative approach, are presented and applied to a lidar measurement. The measured overlap profile accounts for actual system alignment and for all system parameters that are not explicitly known, such as actual laser beam divergence and spatial intensity distribution of the laser light.