Standard Errors of Kernel Equating: Accounting for Bandwidth Estimation

In standardized testing, equating is used to ensure comparability of test scores across multiple test administrations. One equipercentile observed-score equating method is kernel equating, where an essential step is to obtain continuous approximations to the discrete score distributions by applying a kernel with a smoothing bandwidth parameter. When estimating the bandwidth, additional variability is introduced which is currently not accounted for when calculating the standard errors of equating. This poses a threat to the accuracy of the standard errors of equating. In this study, the asymptotic variance of the bandwidth parameter estimator is derived and a modified method for calculating the standard error of equating that accounts for the bandwidth estimation variability is introduced for the equivalent groups design. A simulation study is used to verify the derivations and confirm the accuracy of the modified method across several sample sizes and test lengths as compared to the existing method and the Monte Carlo standard error of equating estimates. The results show that the modified standard errors of equating are accurate under the considered conditions. Furthermore, the modified and the existing methods produce similar results which suggest that the bandwidth variability impact on the standard error of equating is minimal.     

Treatment of compulsive shoplifting by altering social contingencies

and (1968) described the successful treatment of a three-year-old child with chronic constipation by a simple rearrangement of social contingencies. It was felt therefore that it might be worthwhile briefly reporting a case of compulsive shoplifting, where treatment was effected by an alteration in social contingencies.     

Inducing psychotherapy: Hypnotic analogue for brief psychotherapy

These authors contend that hypnosis is a useful analogue and change accelerator for brief psychotherapy.A deep structure of psychotherapy is described by Frank, as making changes in a person's assumptive world so he/she may live more effectively. Cognitive alterations arise from new emotional experiences or emotional schemas which in turn have arisen in the context of a therapy relationship.A parsimonious recipe for the structure of brief psychotherapy is hypnosis. Hypnotic analogues for psychotherapy emerge from many theoretical backgrounds. After integrating aspects of these theories, a general analogue of hypnosis for the structure of brief psychotherapy is suggested. The analogue addresses induction, power issues, deepening, making and solidifying cognitive alterations, and endings.     

Testing equality of correlated proportions with incomplete data on both responses

Two test statistics are proposed for testing the equality of two correlated proportions when some observations are missing on both responses. The performance of these tests in terms of size and power is compared with other tests by means of Monte Carlo simulations. The proposed tests are easily computed and compare favorably with other tests.     

Relationships between job evaluation ratings and self-ratings of job characteristics

Self-ratings by 308 shop workers of their job variety, autonomy, task identity, and skill challenge correlate significantly with ratings by observers of the jobs' skill requirements. Self-ratings, however, are unrelated to observers' estimates of the physical demands of the jobs or to environmental conditions of the work. The self-ratings and observer measures provide complementary, not substitute, information. Self-ratings can signal person-job dysfunctions, and more objective job measures can identify possible sources of the dysfunctions. Modifications to job characteristics measures are discussed and suggestions are made to begin a new phase of programmatic job characteristics research.     

Working wives and women's rights: The connection between the employment status of wives and the feminist attitudes of husbands

Women in the labor force tend to have more profeminist attitudes on women's rights and sex roles than women working in the home. In turn, the husbands of wives employed outside the home are more supportive of feminist positions than the husbands of wives working in the home. The difference is greater on attitudes relating to employment and traditional roles in the home and family but also occurs on some items dealing with political rights and general sexual equality. The causal connection between the attitude of husbands and the labor-force status of their wives can not be demonstrated, but causation is believed to work in both directions.This research was done for the General Social Survey project directed by James A. Davis and Tom W. Smith (GSS Technical Report No. 41). The project is funded by National Science Foundation Grant SES-8118731.     

Adaptation to time-varying signals and control-theory models of tracking-behaviour

Summary Control-theory models of tracking behaviour imply continuous negative feedback as opposed to discrete control, and they assume the existence of a quadratic error criterion. The experimental induction of an asymmetric error criterion gives rise to a nonlinear control strategy which is used here to investigate the process of adaptation of tracking strategy to disturbances with varying statistical parameters. Results show that tracking behaviour adapts to time-varying signals, but this adaptation is not based on an estimate of the statistical parameters of the disturbance, as is assumed by an optimal-control model of tracking behaviour. It is suggested that continuous tracking behaviour is a special case induced by specific experimental conditions. In general, a view of tracking behaviour as a sequence of discrete actions seems more appropriate.This work was supported by Deutsche Forschungsgemeinschaft. Elke Melchior participated in this research     

Similarity and attraction in homosexual males: The effects of age and masculinity-femininity

Recent research on homosexual partner preferences has focused on sexual attraction, but little attention has been paid to stable, long-term relationships in this population. The present research is concerned with the roles of similarity and complementarity in relatively durable relationships. One-hundred and eleven homosexual males completed a questionnaire describing themselves, including their masculinity and femininity (Bem, 1974), and characteristics of their ideal partner. Results indicated a desire for a partner who was logical and expressive, similar in age, and similar in masculinity—femininity. No special features of homosexuality nor sex roles seem necessary to explain these results.