Participant Groups (participant + groups)

Distribution by Scientific Domains


Selected Abstracts


The sources of skill in seriating cups in children, monkeys and apes

DEVELOPMENTAL SCIENCE, Issue 1 2002
Dorothy M. Fragaszy
Is a concept of either reversibility or of hierarchical forms of combination necessary for skilled seriation? We examined this question by presenting seriating cups to adult capuchin monkeys and chimpanzees and to 11-, 16- and 21-month-old children. Capuchins and chimpanzees consistently created seriated sets with five cups, and placed a sixth cup into a previously seriated set. Children of all three ages created seriated five-cup sets less consistently than the capuchins and chimpanzees, and were rarely able to place a sixth cup into a seriated set. Twenty-one-month-olds produced more structures containing three or more cups than did the younger age groups, and these children also achieved seriated sets more frequently. Within all participant groups, success at seriating five cups was associated with the frequency of combining three or more cups, regardless of form. The ability to integrate multiple elements in persistent combinatorial activity is sufficient for the emergence of seriation in young children, monkeys and apes. Reliance on particular methods of combination and a concept of reversibility are later refinements that can enhance skilled seriation. [source]


The Reliability, Validity and Practical Utility of Measuring Supports using the I-CAN Instrument: Part II

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 4 2009
Vivienne C. Riches
Background, There is an urgent need for developing reliable, valid and practical instruments that assess and classify the support needed by persons with disability to function in their chosen living, working and social environments. I-CAN is an instrument that addresses the frequency and level of support needed (not individual skills or deficits) for each individual with a disability. Method, Studies were conducted to assess the test,retest reliability and inter-rater reliability. Concurrent validity was investigated by exploring the relationship between the I-CAN domain scales and the Inventory for Client and Agency Planning (ICAP) (Bruininks et al. 1986) and the Quality of Life Questionnaire (QOL-Q) (Schalock & Keith 1993). Predictive validity studies were undertaken using day- and night-time support hours. Regression analyses were run using these measures with I-CAN domain scales. Two independent studies were also conducted to ascertain the practical utility of the instrument. Results, The I-CAN instrument demonstrated excellent inter-rater and test,retest reliability in the Activities and Participation domains. Low-to-moderate test,retest results in Physical Health, Mental Emotional Health and Behaviour domains were tracked to actual change in support needs in these areas. Validity proved acceptable. The relationships between I-CAN domain scales and adaptive behaviour were mixed but in the expected direction. Low-to-moderate correlation coefficients were evident between the I-CAN scales and the QOL-Q Total, but greater support needed in certain domains was associated with less empowerment and independence, and less community integration and social belonging. Attempts to explain current support hours against the I-CAN scales were disappointing and suggest that a number of other factors apart from individual support need to play a significant role. There was general satisfaction with the assessment process from stakeholders and participant groups. Conclusions, I-CAN is a reliable, valid and user-friendly instrument for assessing the support needs of people with disabilities. It uses a process that involves the persons with disability, their family and friends and staff as appropriate. It is also apparent that the current provision of paid support hours by agencies is a complex phenomenon that is not based solely on individual support needs. Further research is warranted on the influence of the environment and the perceptions of need for support based on negotiable and non-negotiable support needs. [source]


Eyewitness Memory and Eyewitness Identification Performance in Adults with Intellectual Disabilities

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 6 2008
Marguerite Ternes
Background, Since individuals with intellectual disabilities are often the only witnesses to alleged crimes, it is important to know their capacity to provide eyewitness testimony. Methods, Twenty-two participants with intellectual disabilities and 23 comparison group participants had their photographs taken by a confederate. One to two weeks following the photography session, participants were interviewed about the event and were asked to identify the photographer. Two misleading questions, to test for suggestibility, were asked at the end of the interview. Results, Comparison group participants performed significantly better than participants with intellectual disabilities with a target-present lineup, but no significant differences were found between participant groups with a target-absent lineup. Comparison group participants performed significantly better than chance with the target-absent lineup, but participants with intellectual disabilities did not. In the interview, participants with intellectual disabilities provided significantly fewer details than comparison group participants, and the details provided by both groups were mainly accurate. Participants with intellectual disabilities were significantly more likely to acquiesce to one of the suggestive questions than comparison group participants, but the two participant groups did not differ in likelihood of acquiescence for the other suggestive question. Conclusions, It seems that individuals with intellectual disabilities may make adequate witnesses if they are interviewed in a non-leading manner. Future research should examine methods to improve their eyewitness identification performance. [source]


Occupational therapists as expert witnesses on work capacity

AUSTRALIAN OCCUPATIONAL THERAPY JOURNAL, Issue 2 2010
Shelley Allen
Aim:,The aim of this study was to explore the particular challenges for occupational therapists during their cross-examination as an expert witness on work capacity. Methods:,Grounded theory methodology was used to collect and analyse data. Interviews were conducted with 31 participants with direct experience of occupational therapy work capacity assessments. Of these, 19 were occupational therapists, six were medical specialists and six were lawyers. Results:,All participant groups perceived that maintaining one's credibility in the witness box was of paramount importance. The occupational therapists identified 11 strategies that barristers may use to challenge their credibility as an expert witness. Conclusions:,The three professional groups proposed practices that maintain occupational therapists' credibility as expert witnesses on the work capacity of personal injury claimants. [source]


Validity and reliability study for the NEI-VFO-39 scale in chronic ophthalmic diseases , Turkish version

ACTA OPHTHALMOLOGICA, Issue 4 2010
Emine Iyigun
Abstract. Purpose:, To test the reliability and validity of National Eye Institute Visual Function Questionnaire (NEI-VFQ-39) in patients with glaucoma, cataract, diabetic retinopathy and age-related macular degeneration. Methods:, The study was carried out on 210 patients and 51 control subjects. The data were collected by using a data collection form and NEI-VFQ-39. Statistical analyses were performed with spss for Windows version 15.0. Results:, Cronbach's alpha coefficient was 0.96 for the whole group. Cronbach's alpha coefficient was between 0.97 and 0.56 for the subscales. There was a strong relationship (r > 0.80) in 12.8% with dual correlation in NEI-VFQ-39 global scales and subscales and their correlations in all participant groups. There was a statistically significant difference for the NEI-VFn global and subscale scores between the control and patient groups except for general health and ocular pain. Conclusions:, We found that the NEI-VFQ-39 was a valid and reliable scale to determine the quality of life in Turkish patients with chronic ophthalmic disease. [source]