Effects of direct instruction on the acquisition of prepositions by students with intellectual disabilities

Some students with intellectual disabilities require explicit instruction of language skills, including preposition use; however, little is known about effective ways to teach preposition use to this population. This study examined direct instruction (DI) to teach students to use and respond to prepositions. Results indicated that DI was an effective way to teach prepositions. Limitations and directions for future research are discussed.     

Microcomputer-based programmed instruction in identity matching to sample for persons with severe disabilities

Three individuals with mental retardation, who had failed to learn identity matching to sample with standard fading and prompting procedures, were given microcomputer-based programmed instruction. The methods were based on an analysis of two features of typical identity matching procedures: (a) within each trial, the current sample stimulus must control comparison selection, and (b) across trials, specific comparison stimuli must function both as S+ and as S–, depending upon the sample presented (conditional discrimination). During the first phase of training, one-trial acquisition of discriminative stimulus control was established in a nonconditional discrimination context where the S+ or S– functions of specific stimuli did not change from trial to trial. After one-trial learning was established, conditional discrimination was programmed by gradually introducing reversals of S+/S– stimulus functions. All three participants learned to perform conditional identity matching. Avenues for further analysis of the prerequisites for conditional discrimination and continued development of programmed methods are discussed.     

People with severe and profound intellectual disability: Nurse carer experiences in a South African setting

We explored nurse carer experiences with people with severe and profound intellectual disability in a care and rehabilitation centre in South Africa. Informants were a convenience sample of 10 nurses (females = 7; males = 3; mean years of service = 7.8, SD = 4.8 years). They completed an unstructured interview on their care provision experiences. The data were thematically analysed using Tesch’s method of open coding. Findings resulted in the following three themes to characterise the nurse carer experiences: compassion, person-centred care, and importance of parent involvement. Compassionate and person-centred care is fundamental to the establishment of a therapeutic relationship between nurse carers and people with severe and profound intellectual disability.     

Group instruction with profoundly retarded persons: acquisition, generalization, and maintenance of a remunerative work skill.

We evaluated a group instruction program for teaching a vocational skill to profoundly retarded adults. The program involved designated trainer roles and both individual student-directed and total group-directed procedures. Results indicated that, following the program, participants acquired the skill of stamping addresses on envelopes, the skill generalized across an untrained type of envelope, and the skill maintained over time. The group activity was incorporated into the regular classroom without increased disruption and the participants earned a wage for their productivity. Implications for the development of a group instruction technology for severely handicapped persons are discussed.     

Caring for children with an intellectual disability: An exploratory qualitative study

This study explored family caregiver experiences of children with an intellectual disability in a rural South African day-care centre. The family caregivers (N = 15; mothers = 60%; age range = 35 to 68 years) completed in-depth interviews regarding their experiences providing care to children with intellectual disability. Data collection and analysis was done using phenomenological methods. The following themes emerged to characterise the family caregiver experiences: deeper understanding of intellectual disability; disability disclosure conditions; and social and economic support needs. Family support emerged as an important factor in the relationship between caregivers’ psychological stress and well-being.     

An evaluation of the high-probability instruction sequence with and without programmed reinforcement for compliance with high-probability instructions

We assessed the effects of reinforcement and no reinforcement for compliance to high-probability (high-p) instructions on compliance to low-probability (low-p) instructions using a reversal design. For both participants, compliance with the low-p instruction increased only when compliance with high-p instructions was followed by reinforcement. These results suggest that providing reinforcement for high-p instructions may result in increased compliance to low-p instructions.     

Evaluation of resistance to change under different disrupter conditions in children with autism and severe intellectual disability

Translational research inspired by behavioral momentum theory in the area of developmental disabilities has shown effects in individuals over a range of functioning levels. In the current study, behavioral momentum was assessed in 6 children diagnosed with autism and severe intellectual disability. In a repeated measures design, participants were exposed to relatively rich versus lean reinforcement contingencies in a multiple schedule with food reinforcers. This was followed by exposure to each of four disrupting conditions: prefeeding, presentation of a concurrent alternative stimulus, presentation of a movie, and the presence of a researcher dispensing response-independent reinforcers on a variable-time schedule. Consistently greater resistance to disruption in the component with the richer schedule occurred with the alternative stimulus disrupter but not with the other disrupters. These results suggest parameters that may be more (or less) effective if behavioral momentum inspired techniques are to be exploited in therapeutic environments.     

People with intellectual disability as neighbours: Towards understanding the mundane aspects of social integration

Although people with intellectual disabilities (ID) are increasingly expected to relocate from traditional institutional care to ‘regular’ neighbourhood housing facilities and socially integrate in these neighbourhoods, little is known about how they are perceived and appreciated as neighbours. This paper reports on interviews carried out with 30 neighbours without ID who were neighbours of small‐scale care facilities for people with ID. Interviews addressed the neighbours' everyday experiences of neighbouring in general, and neighbouring people with ID in particular. Neighbouring, for these informants, called for a fine balance between friendliness without over‐involvement. While they were generally positive about their interactions with their neighbours with ID, it emerged that the formal nature of the care facility and the interaction style of some of the neighbours with ID often contravened informants' assumptions about neighbouring. Informants expressed concern about a possible lack of appropriate distance, reciprocity and accountability among their neighbours with ID. The nature of the care facility, with paid staff, often group activities, formal means of achieving the everyday small tasks which neighbours sometimes do for each other, and a high turnover of residents, all undermined the possibility of a typical neighbourly relationship. In conclusion, we suggest that integration of people with ID into everyday neighbouring relationships raises complex challenges for care organizations that need to find a balance between supporting the needs of people with ID they care for, adequate support and mediation for other neighbours when necessary, and all the while avoid becoming overly involved in neighbouring as a formal partner. Copyright © 2010 John Wiley & Sons, Ltd.     

The next exclusion debate: assessing technology, ethics, and intellectual disability after the Human Genome Project

Recent scientific discoveries have made it much easier to test prenatally for various genetic disabilities, such as Down syndrome. However, while many observers have heralded such "advances" for their effectiveness in detecting certain conditions, others have argued that they perpetuate discrimination by preventing the birth of children with disabilities. This article examines the ethical and social implications of the Human Genome Project for individuals with intellectual disabilities and their families. It details the critique of prenatal testing articulated by many disability rights activists as well as scholarly and professional responses to that critique. A review of the pertinent research literature includes perspectives of genetic professionals, ethicists, disability studies scholars, parents of children with disabilities, and disabled individuals themselves. Finally, the article explores how future research endeavors, policies, and practices may more effectively integrate and respect the positions of these various stakeholders.     

Establishing motion control in children with autism and intellectual disability: Applications for anatomical and functional MRI

Excessive motion makes magnetic resonance imaging (MRI) extremely challenging among children with autism spectrum disorder (ASD). The medical risks of sedation establish the need for behavioral interventions to promote motion control among children with ASD undergoing MRI scans. We present a series of experiments aimed at establishing both tolerance of the MRI environment and a level of motion control that would be compatible with a successful MRI. During Study 1, we evaluated the effects of prompting and contingent reinforcement on compliance with a sequence of successive approximations to an MRI using a mock MRI. During Study 2, we used prompting and progressive differential reinforcement of other behaviors (DRO) to promote motion control in a mock MRI for increasing periods of time. Finally, during Study 3, some of the participants underwent a real MRI scan while a detailed in‐session motion analysis informed the quality of the images captured.     

Psychological and educational characteristics of instruction for people with severe disabilities: Interacting systems of responding

This paper presents a behavioral model which proposes that operants are organized and regulated into systems of responding. Multi-operant theory proposes that operants are organized into response systems that interact to adapt behavior to the complexities of the environment. The operant is the interaction between behavior and the environment which includes the conditions under which responses may occur, the class of behavior that is likely to be effective in producing outcomes, and the antecedent conditions that define the context of behavior. A central feature of this theory is that operants within a repertoire are organized into regulated systems of responding. The mechanisms of regulation are themselves operants that are learned and controlled by processes that are the same as those that govern more overt behavior. Operants stand in relationship to each other in coordinated response systems with some operants directly affecting and organizing the performance of other operants. An important implication of the systemic nature of behavioral repertoires is that bringing some aspect of a behavior class under control of new variables may demonstrate a spread throughout the entire operant system depending on past histories linking the classes.deceased     

Factor structure of the construct of adaptive behavior in children with and without intellectual disability

Although the presence of significant limitations in adaptive behavior constitutes one of the three necessary criteria for diagnosing intellectual disability, adaptive behavior structure has always been the subject of considerable controversy among researchers. The main goal of this study is to extend previous research results that provide further support to a multidimensional structure of conceptual, social, and practical skills compared to the unidimensional structure. One-factor and 3-correlated factors models as measured by 15 observable indicators were analyzed by means of confirmatory factor analysis (CFA), as well as their relationships with one second-order factor (i.e., adaptive behavior). To that end, 388 children with and without intellectual disabilities were assessed with the Diagnostic Adaptive Behavior Scale (DABS). Results of CFA indicated that the 3 first-order factors solution provides the best fit to the data. Reliability and validity of the multidimensional model were also analyzed through different methods such as the composite reliability and the average variance extracted. Finally, implications of these findings and possible directions for future research are discussed.     

Taxonomy of moderators that govern explicit memory in individuals with intellectual disability: Integrative research review

This integrative research review aims to discover moderators that influence explicit memory performance of individuals with intellectual disability (ID). We reviewed 47 explicit memory studies (since 1990) that were conducted in populations with ID. We suggest a taxonomy of moderators related to the participants, encoding and retrieval stages, where only an interrelation between the three dictates memory performance. We found that individuals with nonspecific ID can achieve the same level of recognition as individuals with typical development (TD) with the same chronological age when all encoding moderators are favorable. Recognition tests facilitate recollection more than free recall in all etiologies. The performance of individuals with ID was poorer than that of individuals with TD in all auditory memory tasks. Spatial location memory varied with task demands, practice, intention, age and intelligence. We conclude with suggestions for further research and educational implications.     

Washington rises: public financial support for intellectual disability in the United States, 1955-2004

Public financial support for intellectual disability in the United States grew from 2.3 billion in 1955 to 82.6 billion in 2004, and the federal government emerged during this period as the principal provider of such support. Notwithstanding this unprecedented growth in financial support, many inequities persist today in the distribution of financial resources and services across states, communities, families and to individual disabled consumers. Moreover, tens of thousands of persons with intellectual disabilities continue to live in institutions and nursing homes, waiting lists and aging caregivers are growing rapidly, and family support and supported employment programs receive limited funding. Research and training support has declined significantly in comparison to the growing financial commitments for services and income maintenance. To address these and other issues, the author suggests commissioning a new "President's Panel on Intellectual Disability" modeled on President Kennedy's landmark 1961 Panel on Mental Retardation. The new panel would be appointed during the first months of the new presidential administration in 2009 and deliver its report to the President in 2011, commemorating the 50(th) anniversary of the original President's Panel.     

When one-two-three beats two-one-three: Tracking the acquisition of the verbal number sequence

Psychonomic Bulletin & Review - Learning how to count is a crucial step in cognitive development, which progressively allows for more elaborate numerical processing. The existing body of...     

Telehealth for persons with severe functional disabilities and their caregivers: facilitating self-care management in the home setting

Persons with severe functional disabilities are the highest users of health care services. Caring for the needs of this population represents a significant percentage of our national health care costs. A growing body of research has demonstrated the efficacy of self-management strategies and caregiver engagement for effective long-term care for individuals with chronic medical conditions. Economic forces over the past decade have led to new challenges and resulted in major changes in health care delivery resulting in shortened length of inpatient stays and greater limits on the length of outpatient treatment. Telehealth is an innovative method for health care delivery and a means of meeting this new challenge. This article highlights the findings of 3 pilot studies on the use of telecommunications technologies in promoting self-care management and enhancing health care outcomes in persons with severe disabilities and their family caregivers. The importance of matching technology to the needs of this population, lessons learned from these investigations, and future directions for research are addressed.     

Increasing the efficiency of instruction for a person with severe disabilities: The applicability of Fitts' law in predicting response time

The purpose of this study was to demonstrate the applicability of Fitts' law in predicting the response duration of instruction-specific head movements for a person with severe multiple disabilities. Fitts' law is a motoric algorithm that calculates an index of difficulty (ID) for responses in relation to the variables of stimulus width and stimulus amplitude. Four functional tasks from the learner's current continuing education plans were targeted: photocopying, using a paint well, model painting, and communication symbol sequencing. For each of the four tasks, two sets of indices were calculated by (1) holding constant stimulus width while varying amplitude, and (2) holding constant stimulus amplitude while varying width. Results showed that response duration varied as a function of ID variation.     

Parental and professional views of the needs of families with a child with severe physical disability

The study examined parents' and paediatricians' views of the prevalence of needs for help in a number of different areas related to child and family functioning. Twenty-four paediatricians estimated the percentage of families who would need help in each area and their estimates were compared with data from 107 parents who responded about their own needs. Parents and paediatricians largely agreed on the areas of greatest need but in other areas paediatricians tended to overestimate the negative impact of the child on the family and parents' needs for help in teaching the child. Paediatricians with more years experience were likely to be more accurate in their estimates, as were those who placed greater emphasis on giving information about other services to parents and the importance of their own continued involvement with the family. Results are discussed in relation to their implications for parent-professional partnership, the need for more emphasis on communication skills in medical training and the importance of individualized assessment of family needs.     

How to learn the natural numbers: inductive inference and the acquisition of number concepts

Theories of number concepts often suppose that the natural numbers are acquired as children learn to count and as they draw an induction based on their interpretation of the first few count words. In a bold critique of this general approach, Rips, Asmuth, Bloomfield [Rips, L., Asmuth, J. & Bloomfield, A. (2006). Giving the boot to the bootstrap: How not to learn the natural numbers. Cognition, 101, B51-B60.] argue that such an inductive inference is consistent with a representational system that clearly does not express the natural numbers and that possession of the natural numbers requires further principles that make the inductive inference superfluous. We argue that their critique is unsuccessful. Provided that children have access to a suitable initial system of representation, the sort of inductive inference that Rips et al. call into question can in fact facilitate the acquisition of larger integer concepts without the addition of any further principles.