Predicting effectiveness of bayesian classification systems

A model is presented for evaluating potential effectiveness of a Bayesian classification system using the expected value of the posterior probability for true classifications as an evaluation metric. For a given set of input parameters, the value of this complex metric is predictable from a simply computed row variance metric. Prediction equations are given for several representative sets of input parameters.     

Predictive Indices of the GATB

The study reported here investigated the use of the General Aptitude Test Battery for identification and counseling of students in vocational and academic clases in Ohio secondary schools. Frequency distributions of the GATB aptitude scores were developed for 4,000 ninth- and tenth-grade boys and girls. A multiple regression analysis was performed using the aptitude scores of the GATB as the independent variables, and point hour ratio and single subject grades at the end of one year as the dependent variables. Freshmen and sophomore grade-point average separately and in combination were the criteria used to determine the predictive ability of the aptitudes of the GATB. The GATB was useful in the predictive role for ninth- and tenth-grade achievement in most of the areas studied.     

Behavioral disordered children's conceptions of moral,conventional, and personal issues

This study employed a series of sorting tasks with 22 normal and 20 children with behavioral disorders (BD) to determine whether BD children discriminate among three classes of social actions viewed by normal children as distinct. These categories are (1) the moral (actions having intrinsic effects upon the rights or well-being of others), (2) the conventional (actions whose propriety is determined by social consensus), and (3) the personal (actions whose propriety is a matter of individual prerogative). Findings were that although BD children distinguished among the three forms of behavior, they differed with normals in the classifications of specific acts and in the reasons given for act classifications. Chief among these differences was the finding that BD children were less likely than normals to identify acts as within their personal domain.We wish to thank Mary Confray, Denise Jaffe, and Christopher Pellikan for their help with the data collection. Thanks are also due to Diana Algminas of the Proviso Area Exceptional Children's Program, Ted Lawrence of the West Suburban Association for Special Education, and Wayne Thorne of the Board of Education District No. 89 (Maywood and Melrose Park, Illinois) for the cooperation of schools in their respective districts. We wish also to thank Mark Oberlander and Ronald Brown for their suggestions regarding identification of the BD sample. Portions of these data were presented at the annual meeting of the American Educational Research Association, Los Angeles, April 1981.     

The dynamics of individual resistance and techniques for handling these manifestations in group psychotherapy

The dynamics of individual resistance in group psychotherapy are described under two classifications: 1) extragroup-session resistance, and 2) intragroup-session resistance. The different kinds of resistances in each classification are explained and examples from group sessions are given to demonstrate each.The author acknowledges with thanks the editorial assistance and suggestions made by Aaron Stein, M.D., F.A.G.P.A., Clinical Professor, The Mount Sinai School of Medicine, C.U.N.Y., and Attending in Charge, Group Psychotherapy Division, Department of Psychiatry, The Mount Sinai Hospital, New York.     

Three prepositional calculi of probability

Attempts are made to transform the basis of elementary probability theory into the logical calculus.We obtain the propositional calculus NP by a naive approach. As rules of transformation, NP has rules of the classical propositional logic (for events), rules of the ukasiewicz logic ₀ (for probabilities) and axioms of probability theory, in the form of rules of inference. We prove equivalence of NP with a fragmentary probability theory, in which one may only add and subtract probabilities.The second calculus MP is a usual modal propositional calculus. It has the modal rules x x, x y x y, x x, x y (y x), (y x), in addition to the rules of classical propositional logic. One may read x as x is probable. Imbeddings of NP and of ₀ into MP are given.The third calculus P is a modal extension of ₀. It may be obtained by adding the rule ((xy)y) xy to the modal logic of quantum mechanics Q [5]. One may read x in P as x is observed. An imbedding of NP into P is given.     

Cognitive ego psychology and the psychotherapy of learning disorders

The single most common referral problem in middle childhood and adolescence is academic underachievement and learning failure. Yet, the term “learning disorder” lacks specificity as a diagnostic entity and offers no guidelines for psychotherapy. An appreciation of the developmental processes by which the undifferentiated, unstructured, self-less and objectless newborn becomes a more fully developed, self-sufficient individual, capable of adaptive functioning and formal academic learning is encompassed in contemporary psychoanalytic conceptions of the separation-individuation process. This theory provides an organizing, theoretical base for diagnosis and treatment of learning disorders. Based on these conceptions, we discuss therapeutic techniques which are appropriate to the level of developmental arrest at each of the phases of the separation-individuation process.     

Effects of distress on eating: the importance of ego-involvement.

Schotte (1992) argued that ego threat is not a necessary precondition for the disinhibition of eating in dieters. This article agrees that there are indeed other triggers for disinhibition, as has long been widely acknowledged, but also argues that when distress does act as a trigger for disinhibition, it does so by threatening the dieter's self-image.     

Industrial and Organizational Psychology Programme at the University of Colorado at Denver

This article describes the Industrial and Organizational Psychology Programme at the University of Colorado at Denver (CU-Denver). First, we provide an overview of the programme's most salient characteristics and objectives. Next, we summarize five ongoing research programmes being conducted at CU-Denver: (a) Social Power and Influence in Organizations, (b) Personnel Selection, (c) Applied Research Methods, (d) Training Evaluation, and (e) Cognitive Assessment. For each research programme we describe (a) primary questions addressed, (b) selective recent findings, and (c) current projects and future directions. Finally, we describe the role and current activities of the Centre for Applied Psychology