Intelligent information retrieval: diagnosing information need. Part II. Uncertainty expansion in a prototype of a diagnostic IR tool

This article is part II of a three part series. In part I we described the theoretical framework for developing an “intelligent information retrieval” tool, based on three principles from medical diagnosis theory. In part II, the present article, we outline a prototype of an “intelligent” IR tool, whose purpose is to facilitate information access for an undergraduate seeking information for a history term paper. Our objective is to create a tool that will (i) draw-out the undergraduate's query to the information system by taking the student through the task of doing the term paper and (ii) diagnose the student's information need by measuring his or her degree of topic integration. The degree of integration indicates a class of information need. The classes of information need are based on Kuhlthau's six stage information search process (ISP) model (each stage is a separate information need, demanding different information to satisfy it). The measurement instrument is based on (i) principles from Shannon's mathematical theory of communication and (ii) principles of uncertainty expansion and reduction from differential diagnosis theory.     

Discipline in Schools

Debate about 'discipline'in schools almost invariably takes the form of empirical enquiry about which methods are most effective in securing it. This is to neglect a substantial part of the problem – the prior moral issue about the proper way to educate children. The main difficulties here are conceptual. Two rival ways of conceptualising 'educational order'are identified and examined. The received, traditional way is found to be disingenuous, incoherent and unworkable. The alternative – a reconstructed child-centred approach – escapes these problems and is commended. This conclusion is tested by investigating how each maps on to the project of moral education, for which school discipline is a neglected central arena.     

Knowledge, attitudes, and beliefs about HIV/AIDS among Hindu students from a government women's college of South India

The purpose of the study was to determine the attitudes of Hindu students from a government women's college of South India toward people with AIDS, to assess their beliefs about HIV/AIDS, to determine their knowledge level about HIV/AIDS and to determine how they gain information about HIV/AIDS. The sample consisted of four hundred female students at a government funded Women's University in Southern India who participated in an AIDS survey research project. Participants completed a survey asking about their knowledge, attitudes and beliefs about HIV/AIDS. Results indicated that a majority of the participants learned about HIV/AIDS from reading material while some learned about HIV/AIDS from school classes, and only a few learned from family members. Thirty-nine percent had never communicated to any one about HIV/AIDS. The results indicated that the majority of Indian women in this study did not know about explicit sexual behaviors which transmit the virus. The study also showed that those Indian women university students, by and large, are accepting of people with AIDS but still have fears of getting HIV/AIDS. This data suggest a need to increase educational efforts at the university. It was suggested that counselors take responsibility for helping this population of Indian women become self advocates, particularly in a society which permits men to have multiple sexual relationships. Educators and counselors working with this population must initiate programs that impart accurate and specific knowledge to these female college students and begin to address the multiple psychosocial issues related to HIV/AIDS.     

An alternative method of answering and scoring multiple choice tests

A simple modification to the method of answering and scoring multiple choice tests allows students to indicate their estimates of the probability of the correctness of the multiple choice options for each question, without affecting the validity of the assessment. A study was conducted using a test that investigated common misconceptions in mechanics. The study showed that for assessment purposes this method gives results that are very similar to results obtained by students who answer in the traditional manner. Year 12 Physics students (N=85) were randomly allocated to two treatment groups: one received a standard format multiple choice test, the other a test format allowing students to select more than one response in a multiple choice test, and to distribute their marks among their chosen optionsl An analysis of the students' uncertainties is used to argue that not only can students appeal to different conceptions in different contexts, but that they can also hold conflicting conceptions with respect to a single context.     

POSTCOLLEGE EARNINGS OF FORMER STUDENTS OF CALIFORNIA COMMUNITY COLLEGES: Methods, Analysis, and Implications

In the wake of new federal and state mandates,community colleges are faced with demands to provideaccountability reports on student outcomes. With the useof the Employment Development Department Unemployment Insurance (EDD-UI) wage record data, along withthe California Community Colleges Chancellor's OfficeManagement Information System administrative database,this study sought to investigate the extent to which completing an associate degree andvocational certificate impacts the postcollege earningsof students. Based on information from 700,564 studentsfrom California community colleges during the 1992-93 academic year, the findings suggest thatstudents' gains from first year out of college to thirdyear out will differ by age group. Among economicallydisadvantaged students, a strong positive relationship exists between educational attainment andpostcollege gains. An important finding among vocationalstudents is that as women complete more education, theearnings gap closes between men and women. Finally, this study raises several policy implicationsand presents suggestions for future research.     

The “Logos” Bible Study: An Experience of Building a Model of Effective Religious Education in the 21st Century

Abstract

New models for prison ministry are crucial during the current era of mass incarceration in America—a time when the potential reach of prison ministries can grow as the population of incarcerated individuals grows. In this article, I lift up one prison ministry in New Jersey as an example of how Christian evangelicals who are engaged in traditional prison ministry can bravely open their minds and hearts to models of religious education that go beyond individual conversion toward communal transformation.     

An application of document filtering in an operational system

This paper describes an applied document filtering system embedded in an operational watch center that monitors disease outbreaks worldwide. At the initial time of this writing, the system effectively supported monitoring of 23 geographic regions by filtering documents in several thousand daily news sources in 11 different languages. This paper describes the filtering algorithm, statistical procedures for estimating Precision and Recall in an operational environment, summarizes operational performance data and suggests lessons learned for other applications of document filtering technology. Overall, these results are interpreted as supporting the general utility of document filtering and information retrieval technology and offers recommendations for future applications of this technology.     

Expanded Koppitz scoring system of the bender gestalt visual-motor test for adolescents: A pilot study

The current research represented a pilot study to assess the use of the Bender Gestalt Visual-Motor Test with school-age adolescents over 11 years of age. Research regarding the accuracy of the hypothesis that visual-motor integration functioning is normally intact by age 11 was presented. In addition, initial data to extend the Koppitz scoring system of the Bender for ages 11 years, 6 months through 15 years, 11 months was proposed. Mean error scores from the pilot study suggested that visual-motor development is not maturationally complete by age 11 years, 11 months. Additional research focusing on extending the normative sample or developing a new scoring system for adolescents is suggested.     

Cardiorespiratory and muscular fitness associations with older adolescent cognitive control

Background:Participation in physical activity supports greater cardiorespiratory fitness(CRF),a correlate of cognitive control.However,the relationship between muscular fitness(MF)and cognitive control is less clear.The present study investigated the differential relationship of CRF and MF with cognitive control in older adolescents.Methods:This cross-sectional study involved students(15
17 years old,n=541,43%female)from 20 secondary schools who completed tests of inhibition(modified flanker task),working memory(n-back task),CRF(Progressive Aerobic Cardiovascular Endurance Run),and MF(standing long jump and push-up test).Multilevel analyses tested the association between CRF or MF and cognitive outcomes while accounting for the influence of the other fitness variable and relevant demographic factors.Results:CRF predicted response accuracy during incongruent flanker trials,the condition requiring greater inhibition.For the working memory task,CRF predicted greater target accuracy and greater d’scores on the 1-back task,requiring lesser amounts of working memory.In the 2-back task,which requires greater amounts of working memory,CRF also predicted greater target and non-target accuracy and d’scores.Comparatively,MF did not predict any cognitive outcomes after adjustment for CRF.Conclusion:CRF was selectively related to better performance during task conditions that require greater amounts of inhibition and working memory.This finding suggests that CRF,but not MF,may benefit cognitive control in older adolescents.This selective influence of CRF on older adolescents’cognition highlights the value of aerobic physical activity.