The purpose of the present review was to evaluate the quality of the research and evidence base for representation of problems as a strategy to enhance the mathematical performance of students with learning disabilities and those at risk for mathematics difficulties. The authors evaluated 25 experimental and quasiexperimental studies according to the Gersten et al. (2005) guidelines for group research studies. Results suggest that the representation of mathematical problems as a strategy is an evidence-based practice based on the criteria set by Gersten et al. Implications for research are discussed.
Direct support professionals (DSPs) provide a broad range of supports in a variety of settings to people with intellectual and developmental disabilities (IDD) that enables people to live, work, and participate in their communities. Despite the crucial importance in ensuring supports for community participation of people with IDD, high rates of annual turnover among DSPs in organizations that employ them have been documented for decades. This study utilizes National Core Indicators Staff Stability data from 2016 to examine the impact of organizational- and state-level factors related to DSP turnover, including annual DSP turnover and the percentage of DSPs who left their positions after less than 6 months. At the organizational level, a higher turnover rate in the last 12 months was significantly related to lower DSP wages and to not offering health insurance. At the state level, a higher turnover rate in the last 12 months was significantly related to a lower percentage of people living in individualized settings and lower per capita Medicaid spending. For early turnover at the organizational level, a higher percent of leavers within 6 months of tenure was significantly related to not offering paid time off and health insurance, higher vacancy rates, higher proportion of part-time DSPs, and lower overall staff sizes.
The Convention on the Rights of Persons with Disabilities (CRPD) aims to change attitudes and policies toward individuals with disabilities worldwide and to foster the inclusion and independence of persons with disabilities in society. The current study was designed to assess empirically the extent to which people with intellectual and developmental disabilities (IDD) exercise certain rights in the United States using the National Core Indicators Adult Consumer Survey (NCI-ACS), particularly to see if items could be scaled to measure certain CRPD articles reliably. An additional aim was to assess the impact of guardianship on the rights of individuals with IDD. NCI-ACS data were analyzed employing factor analysis, multiple analysis of variance, and regression modeling. These approaches allowed us to assess the relationship between guardianship and rights controlling for known covariates (such as level of ID) on outcomes. Results indicate that the NCI-ACS contains several items with sound psychometric properties that can assist in measuring certain rights of people with disabilities according to CRPD. Specifically, employment and budgetary agency appear to be areas of rights outlined by the CRPD that the NCI-ACS can help measure. Finally, the results indicated that people who have an appointed legal guardian are less likely to be employed and to have less social privacy. This study indicates the NCI-ACS has the potential to measure access to CRPD rights, such as employment and budgetary agency, by people with IDD. More work is needed to evaluate additional promising measures of a wider range of CRPD articles. Alternatives to guardianship need to be examined in order to increase the opportunities for people with IDD to exercise their rights. a All items involved yes = 1/no = 0 responses, so the numbers in the mean column may be interpreted as the proportion who answered yes, except for reverse coded items. b Item reverse coded to maintain direction with other items analyzed, thus 0 = yes to item 1 = no.
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