Supervised access: A judicial alternative to noncompliance with visitation arrangements following divorce

Visitation of children after divorce by noncustodial parents is a “natural” right, generally regarded to be in the best interest of children. Custodial parents frequently refuse to allow visitation, even when ordered to do so by the court. The purpose of this report is twofold: (a) to review issues and problems related to visitation; and (b) to describe a program, developed under family court sponsorship, which provides mediation to families in visitation disputes, and supervised visitation when more reasonable access is frustrated by noncompliant parents or when there is concern for the safety and well-being of visited children.     

Probabilistic text understanding

We discuss a new framework for text understanding. Three major design decisions characterize this approach. First, we take the problem of text understanding to be a particular case of the general problem of abductive inference. Second, we use probability theory to handle the uncertainty which arises in this abductive inference process. Finally, all aspects of natural language processing are treated in the same framework, allowing us to integrate syntactic, semantic and pragmatic constraints. In order to apply probability theory to this problem, we have developed a probabilistic model of text understanding. To make it practical to use this model, we have devised a way of incrementally constructing and evaluating belief networks. We have written a program,wimp3, to experiment with this framework. To evaluate this program, we have developed a simple single-blind testing method.     

Book review

Abstract

A Guide to the Organisation and Operation of In-Plant Occupational Health Services by Jean Spencer Felton, Boston/Toronto/London, Little Brown and Company (1990). [Pp. xi + 571.] £70·00. ISBN 0–316-27775–4.     

Social Work in Academia

Social work has long attempted to gain public recognition and support as a profession and as a “legitimate” university program. Although efforts to improve the image of social work as a profession have been moderately successful, attempts to solve the problems within the university setting are yielding less than satisfactory results. This article carefully considers the dual roles of social work within the university as both an academic discipline and as a profession. Eight criteria are identified that clearly differentiate professional disciplines from academic disciplines. These criteria are presented in an attempt to help identify the problems with which social work educators struggle. Five guiding principles—(1) cooperation, (2) identity, (3) education, (4) leadership, and (5) fact-finding—are offered for consideration as strategies and solutions for developing a plan of action.     

The Making of Heroes: An Attributional Perspective

Abstract

Through the use of posed vignettes in a telephone survey, we investigate the construction of heroes. We examine the extent to which respondents attribute hero status to three potential 9/11 and “war on terrorism” heroes: Todd Beamer, Army Private Jessica Lynch, and President George W. Bush. Findings suggest the importance of the extraordinary nature and the rarity of action(s) performed by heroes in the attribution of hero status; the role of class, status, and party in the attribution process; and the moral consideration of what should be done in each posed vignette. In addition, the study indicates the utility of attribution theory for the sociological examination of heroism and the viability of normative constructs in examining heroic behavior.     

Was Quetelet’s Average Man Normal?

Abstract

Quetelet’s data on Scottish chest girths are analyzed with eight normality tests. In contrast to Quetelet’s conclusion that the data are fit well by what is now known as the normal distribution, six of eight normality tests provide strong evidence that the chest circumferences are not normally distributed. Using corrected chest circumferences from Stigler, the χ² test no longer provides strong evidence against normality, but five commonly used normality tests do. The D’Agostino–Pearson K² and Jarque–Bera tests, based only on skewness and kurtosis, find that both Quetelet’s original data and the Stigler-corrected data are consistent with the hypothesis of normality. The major reason causing most normality tests to produce low p-values, indicating that Quetelet’s data are not normally distributed, is that the chest circumferences were reported in whole inches and rounding of large numbers of observations can produce many tied values that strongly affect most normality tests. Users should be cautious using many standard normality tests if data have ties, are rounded, and the ratio of the standard deviation to rounding interval is small.     

A confidence region with multiple intervals in multivariate bioassay

The exact confidence region for log relative potency resulting from likelihood score methods (Williams (1988) An exact confidence interval for the relative potency estimated from a multivariate bioassay, Biometrics, 44:861-868) will very likely consist of two disjoint confidence intervals. The two methods proposed by Williams which aim to select just one (the same) confidence interval from the confidence region are nearly – but not completely – consistent. The likelihood score interval and likelihood ratio interval are asymptotically equivalent. Williams's very strong claim concerning the confidence coefficient in the second selection method is still theoretically unproved; yet, simulations show that it is true for a wide range of practical experimental situations.