Amy J. Armstrong

Modern Psychometric Methodology: Applications of Item Response Theory

Item response theory (IRT) methodology is introduced as a tool for improving assessment instruments used with people who have disabilities. Need for this approach in rehabilitation is emphasized; differences between IRT and classical test theory are clarified. Concepts essential to understanding IRT are defined, necessary data assumptions are identified, and specific data analysis techniques, using software such as TESTFACT and BILOG, are described. An example of IRT analysis applied to a subtest of the General Aptitude Test Battery (GATB) administered to people who have diverse disabilities is provided. Future potential uses of this approach in rehabilitation are outlined.

An Assessment of Institutional Publication Productivity in Rehabilitation Counseling.

Although the primary reason for publishing in scholarly journals is to help the profession in its efforts to serve persons with disabilities, such publication has a growing importance for the individuals and institutions involved in the publication process. Increasingly, publication is linked with the funding, reputation, and impact of those in the field. Despite that fact, the field is lacking a current analysis of publication productivity in core rehabilitation counseling outlets. This research was conducted to fill that gap by examining publication productivity in six core rehabilitation journals during the 6-year period from 1997 to 2002. Two ratings of institutional productivity based on author affiliation are provided. First, productivity is detailed in terms of the overall number of individuals involved in the publication process. Second, productivity is detailed via a weighting method based on author position to provide an indication of total number of publications attributable to a given institution. In both cases, the top 20 institutions are detailed. Implications for the field and for future research are discussed.

Hate Crimes and Disability in America

A hate crime is a criminal offense committed against person or property that is motivated, in whole or in part, by the offenders prejudice. Hate crimes are sometimes termed “bias-motivated crimes.” The theoretical bases for bias motivation and their implications for hate crimes against Americans with disabilities are outlined. The history of the Hate Crime Statistics Act (1990) and its eventual extension to Americans with disabilities are also reviewed. Five years of aggregate data from FBI Hate Crimes Statistics reports are analyzed to compare and contrast the hate crimes experience of Americans with disabilities with that of other targeted groups based on race, ethnicity, sexual orientation, and religion. Reports of hate crimes from persons with disabilities are minute as compared to those of any other group. The nature and location of hate crimes are also analyzed. Finally, the findings and their implications for such issues as alternative manifestations of prejudice, underreporting of violent crimes, cross-disability support for hate crime prevention, rehabilitation counseling practice, and future research directions are discussed.

Autism spectrum disorders and intellectual disabilities: A comparison of ADA Title I workplace discrimination allegations

Using the Integrated Mission System (IMS) of the Equal Employment Opportunity Commission (EEOC) for allegations of discrimination involving Title I of the Americans with Disabilities Act (ADA), allegations made by individuals with autism spectrum disorders (ASDs) and by individuals with intellectual disabilities (IDs) are compared and contrasted. Key dimensions of workplace discrimination examined include: demographic characteristics of the charging parties; the industry designation, location and size of employers against whom allegations were filed; the nature of workplace discrimination alleged to have occurred; and the EEOC outcome/resolution of these allegations. The characteristics of ASD allegations are then compared and contrasted with those of ID allegations. The findings of this study imply that typical ASD and ID allegations are characteristically quite similar to each other. Differences that were found between the two groups of allegations indicate that charging parties with ASD are more likely to be a bit younger than those with ID, and are more likely to be male. Additionally, ASD allegations of discrimination were more likely than ID to have been made against Information, Educational Services, and Arts/Entertainment/Recreation industry employers.

Factors Influencing Functional Outcomes and Return-to-Work After Amputation: A Review of the Literature

Purpose Amputation is a life changing event that can significantly impact an individual’s physical and mental well-being. Our objective was to review literature exploring the impact of amputation upon a person’s functioning and inclusion in the workplace. Methods Medline, CINAHL, and PsycINFO were searched using keywords related to amputation, employment and community reintegration. Eligible studies were published since 2000 and one of the following study designs: randomized controlled trial, non-randomized controlled trial, retrospective study, prospective study, concurrent cohort study, or cross sectional study. Studies for civilians with amputation as well as service members and Veterans with amputation were considered for inclusion. Results The search identified 995 articles, 25 of which met inclusion/exclusion criteria and were included in the review. While strong evidence for correlations and predictors of outcomes after amputation were limited, multiple factors were identified as contributing to physical functioning and employment after amputation. Conclusions Outcomes after amputation can vary widely with many potentially inter-related factors contributing. The factors identified may also serve to inform the development of interventions aiming to improve functional performance and reintegration after amputation. Furthermore, the review highlights the need for more high quality prospective studies.

Rehabilitation Service Utilization Among African American Women Living With HIV/AIDS Applying the Behavioral Model for Vulnerable Populations

African American women are disproportionately affected by HIV/AIDS. As individuals with HIV/AIDS are living longer and healthier lives, research exploring the appropriateness of rehabilitation services has increased. To date, no research has examined the specific use of vocational rehabilitation (VR) services among HIV-positive African American women. The purpose of this study was to apply the behavioral model for vulnerable populations (BMVP) to examine key predisposing, enabling, and need variables related to and predictive of the utilization of VR services among African American women with HIV/AIDS. Survey research methods were used to collect data from a sample of 313 African American women living with HIV/AIDS, recruited from AIDS Service Organizations and national HIV/AIDS networks across the United States, who volunteered to complete the National Working Positive Coalition–Vocational Development and Employment Needs Survey. Hierarchical logistic regression statistical analyses were conducted to identify key factors predictive of use of VR services. Receipt of income benefits and knowledge of VR services were found to be predictive of the utilization of VR services among African American women living with HIV/AIDS.