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This study used Rasch models to evaluate the psychometric properties of a self-efficacy instrument focused on psychosocial aspects of palliative care developed for nursing assistants (NAs). NAs from 6 skilled nursing facilities in Illinois, U.S. (n=102) were divided into intervention and control groups and answered 16 questions at baseline and 1-month follow-up. A total of 84 NAs completed assessments at both times. The rating scale structure improved when 3 instead of 5 response categories were used. After removing 4 items, the instrument demonstrated unidimensionality and local independence. A person-item threshold map indicated a ceiling effect. For the intervention group, 2 items and 1 item became easier and more difficult respectively post-training. With adjustments, the 12-item instrument became an adequate measure of palliative care self-efficacy. By using PCSE-NA as a tool to assess palliative care self-efficacy of NAs, geriatric nurses can identify weaknesses of and ways to improve training for NAs.
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PURPOSE: Increasing racial and ethnic diversity in U.S. nursing facilities has necessitated the provision of more culturally competent care. This study explored the cultural challenges in providing palliative care from the perspective of certified nursing assistants (CNAs) and nurses in nursing facilities. METHOD: A thematic analysis approach was used to examine data from semi-structured interviews with 12 CNAs and 11 nurses from six nursing facilities in a U.S. Midwestern state. RESULTS: Four themes emerged from the data: Cultural Needs Expressed by Residents, Cultural Needs Expressed by Family Members, Accommodating Residents' Cultural Needs, and Organizational Responses to Cultural Competency Challenges. CONCLUSION: Results highlighted the training variations on diversity and cultural competency issues and the varying cultural competency levels possessed by staff. To support residents' culture-related needs, staff need education and support. Organizations can provide foundational resources for this diversity of cultural expression, including providing more culturally diverse programming facilities. [Journal of Gerontological Nursing, 50(7), 35-41.].
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Competência Cultural , Assistentes de Enfermagem , Cuidados Paliativos , Humanos , Assistentes de Enfermagem/educação , Assistentes de Enfermagem/psicologia , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Casas de Saúde , Meio-Oeste dos Estados Unidos , Assistência à Saúde Culturalmente CompetenteRESUMO
OBJECTIVES: The objectives of this study were to evaluate the psychometric properties of a palliative care self-efficacy instrument developed for intellectual and developmental disability (IDD) staff using Rasch analysis and assess the change in palliative care self-efficacy between 2 time points using Rasch analysis of stacked data. METHODS: Staff from 4 nonprofit IDD services organizations in a US Midwestern state (n = 98) answered 11 questions with Likert-style responses at baseline and 1-month follow-up post training. Rasch analysis was performed to examine rating scale structure, unidimensionality, local independence, overall model fit, person and item reliability and separation, targeting, individual item and personal fit, differential item functioning (DIF), and change in palliative care self-efficacy between 2 time points. RESULTS: The rating scale structure improved when 5 response categories were collapsed to 3. With the revised 3 response categories, the instrument demonstrated good psychometric properties. Principal components analysis of Rasch residuals supported the assumption of unidimensionality. Model fit statistics indicated an excellent fit of the data to the Rasch model. The instrument demonstrated good person and item reliability and separation. Gender-related DIF was found in 1 item, and work tenure-related DIF in 3 items. Overall palliative care self-efficacy improved between 2 time points. SIGNIFICANCE OF RESULTS: Rasch analysis allowed for a more thorough examination of this palliative care self-efficacy instrument than classical test theory and provided information on rating scale structure, targeting, DIF, and individual persons and items. These recommendations can improve this instrument for research and practical contexts.
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Cuidados Paliativos , Autoeficácia , Criança , Humanos , Reprodutibilidade dos Testes , Deficiências do Desenvolvimento/terapia , Inquéritos e Questionários , PsicometriaRESUMO
To characterize the movements and habitat use of juvenile green turtles (Chelonia mydas) in benthic developmental habitat, we deployed Fastloc-GPS-enabled satellite transmitters on 16 individuals captured as part of a multi-decade study of green turtles on the Bermuda Platform. We characterized residence areas, distinct use areas within them, and seasonal movements based on an average of 562 Fastloc-GPS positions and 284 tracking days per turtle. We estimated residence area sizes using traditional home range methods, e.g., 90% utilization distribution (UD) (mean 2.29 ±2.71 km2) and 50% UD (mean 0.54 ±0.69 km2). Total residence area size increased significantly over the 8-year study, from <1 km2 before 2013 to ≥3 km2 in 2018 (R2 = 0.51, F1,14 = 14.55, p = 0.0019), corresponding to a period of decline in seagrass habitat and suggesting increased foraging effort. We identified three types of distinct use areas within residence areas where tracked turtles typically exhibited behavioral fidelity: foraging, resting, and cool weather refugia. These distinct use areas were smaller than high-use areas from previous studies; e.g., seagrass meadow foraging areas averaged 0.05 km2. Most turtles made daily transits between foraging and resting sites; for some individuals, these involved crossing frequently used vessel navigation channels. Seasonal variation in behavior suggested that the overwintering strategy for green turtles on the Bermuda Platform involves "optional dormancy," during which turtles spent less time on seagrass meadows and made brief excursions to distinct deeper habitats. Four individuals made directed (mean path straightness = 0.93 ±0.02 SD) developmental migrations away from Bermuda toward known adult foraging range. Results of our study further knowledge of the green turtle life cycle at a high-latitude site; they demonstrate that green turtles show fidelity to distinct use areas within developmental habitats over many years and exhibit seasonal movements.
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Migração Animal , Ecossistema , Oceanos e Mares , Tartarugas , Animais , Estações do Ano , Telemetria , Tartarugas/fisiologia , Comportamento AnimalRESUMO
OBJECTIVE: To learn about the challenges, policies, and needed resources to serve people with intellectual disability and protect staff during the COVID-19 pandemic. From the perspective of intellectual disability service providers. METHODS: We conducted in-depth qualitative interviews with 16 intellectual disability organization administrators throughout Illinois, USA from November 2020 through February 2021. We coded and analyzed the data using thematic analysis. RESULTS: Three major themes emerged: (1) COVID-19 caused considerable challenges to people with intellectual disability and staff and service providers, (2) intellectual disability organizations reinvented service provisions in response to COVID-19 challenges, and (3) the interrelatedness of intellectual disability organizations, public policies, and community entities became evident. CONCLUSIONS: Exhibiting responsiveness to needs and developing innovative solutions were strategies championed by intellectual disability organizations during the pandemic. Fostering collaboration with community entities may assist these organizations in navigating pandemic challenges and developing resilient infrastructure for future environmental threats.
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COVID-19 , Deficiência Intelectual , Humanos , Pandemias , Deficiência Intelectual/epidemiologia , AprendizagemRESUMO
We examined whether an internet use promotion intervention influences low-income older adults' communication modes, internet use, and social networks using existing data collected for an intervention. Participants living in public senior housing facilities in the United States (n = 77) completed surveys before and after a 12-week computer and internet training. The six-item Lubben Social Network Scale (LSNS-6) was used to measure the extent of older adults' social networks. The primary mode of communication shifted from more traditional means to internet-based communications (p < .0005 in a Fisher's exact test). The frequency of internet use significantly increased (p < .00005 in a one-sided Sign test). Overall, the LSNS-6 score increased by 4.1 points (p < .00005 in a Welch's t-test). The LSNS-6 score increase was significantly larger among African Americans than Whites, controlling for gender (p < .05 in negative binomial regression). Moderate (p < .005) and frequent internet users (p < .05) had higher LSNS-6 scores than rare internet users at posttest when gender and race were controlled for in linear regression. Comparatively more improvement in the extent of social networks among African Americans suggests greater benefits of such interventions for population groups of disadvantaged backgrounds. Larger social networks among moderate and frequent internet users than rare users suggest positive impacts of internet communications on social networks.
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We evaluated the effectiveness of an online training on palliative care knowledge and self-efficacy among staff working with people with intellectual and developmental disabilities (IDD) using a one-group pretest-posttest design. Staff from four nonprofit residential and day services organizations in a U.S. Midwestern state participated. Among 132 staff who completed a baseline assessment, a 2-hour online training, and a posttest, 98 staff completed a 1-month follow-up survey. Palliative care knowledge was assessed before and after the training, and palliative care self-efficacy, at baseline and 1-month follow-up. We used linear regression to identify the factors that influence the effect of the training on main outcomes. Overall palliative care knowledge and self-efficacy significantly improved while higher education and longer work tenure enhanced training effectiveness.
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Deficiência Intelectual , Cuidados Paliativos , Pessoal de Saúde , Humanos , Autoeficácia , Inquéritos e QuestionáriosRESUMO
Objectives: Studies have demonstrated success in reducing stress levels in complex interventions including deep breathing components. Breathing exercise interventions, however, tend not to be studied in isolation. The aim of the study was to examine the impact of a breathing exercise using a web-based app on the stress levels of direct care workers (DCWs) who serve people with intellectual and developmental disabilities. Design: Uncontrolled one-group intervention. Settings/Location: DCWs were recruited from intellectual and developmental disability service providers in a US Midwestern state. Subjects: Sixty-four DCWs who used the breathing exercise app at least 2 times. Interventions: Breathing exercise using a web-based app for a month. Outcome measures: Five measures were obtained from the data recorded in the app: initial stress level before exercise, exercise duration in minutes, change in stress level between before and after each breathing exercise, and frequency and number of days the app was used during a month. Participants' self-report of the number of days of app use was collected in a 1-month follow-up survey. Results: The participants appear to have a moderate stress level indicated by the initial stress level 5 out of 10. After the breathing exercise, the stress level decreased by 1.2 points from 5.0 (standard deviation [SD] = 1.8) to 3.7 (SD = 1.6) on average (paired t-test, p < 0.00005). Cohen's d 0.72 indicates a large effect size. Among within-individual factors, a higher initial stress level and longer app use per occasion were significantly associated with stress reduction. Among between-individual factors, only race was associated with stress reduction. Although there was no effect of being an African American alone on stress level change (coefficient = 0.44, 95% confidence interval = -0.29 to 1.18, p > 0.05), there was an additional reduction among African Americans in relation to the initial stress level, controlling for exercise duration. The number of breathing exercise days recorded in the app was not correlated with that of self-report (Pearson's correlation r = 0.12, p > 0.05). Although the app was used for 4.4 (SD = 4.2) days, participants reported using it for 10.7 (SD = 8.2) days on average in the follow-up survey. Conclusions: The findings suggest the benefit of breathing exercises using an app for reducing DCWs' stress levels. Regular use of such apps may assist with stress management and bolster overall health and well-being among DCWs.
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Aplicativos Móveis , Exercício Físico , Pessoal de Saúde , Humanos , Internet , Inquéritos e QuestionáriosRESUMO
BACKGROUND: As people with intellectual and developmental disabilities (PWIDD) are living longer and experience chronic health conditions, there is greater likelihood that direct care workers (DCWs) will need to provide palliative care services. OBJECTIVE: The purpose of this study was to explore DCWs' experience with palliative care and challenges they faced. DESIGN: This study was an exploratory, descriptive study using qualitative methods. SETTING/SUBJECTS: Fifty-four DCWs participated in nine focus groups at five nonprofit community-based organizations that provided residential and day programming services for PWIDD. METHODS: Participants completed a short demographic questionnaire before each of the focus group sessions. In the focus group sessions, participants were asked to describe their experiences of providing palliative care in the workplace and whether they had any difficulties providing palliative care. The focus group discussions were digitally recorded, transcribed professionally, and de-identified for analysis. RESULTS: Challenges DCWs faced and strategies they employed to meet PWIDD's needs were described using two main themes: "challenges" and "meeting PWIDD's needs." The first theme encompassed difficulties in communicating with clients, anxiety of anticipating death, and limited organizational resources or support. Empathy, extra attention, adaptation in care, and peer support comprised the second theme. CONCLUSIONS: The results indicate some intellectual and developmental disability service agencies and DCWs are not equipped to care for PWIDD with palliative care needs, and DCWs try to meet PWIDD palliative care needs through individual efforts and peer support. These findings can inform training development for DCWs, as well as necessary organizational efforts to support DCWs.
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Cuidadores/psicologia , Pessoal de Saúde/psicologia , Enfermagem de Cuidados Paliativos na Terminalidade da Vida/métodos , Avaliação das Necessidades , Cuidados Paliativos/psicologia , Apoio Social , Adulto , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Inquéritos e QuestionáriosRESUMO
BACKGROUND: The purpose of this study was to examine certified nursing assistants' (CNAs') perceptions of their work identity within the context of their relationships with nursing facility residents and residents' family members. Such information can help clarify CNAs' roles and respond to their job needs. Although CNAs provide valuable care for residents, they often experience low status at work; it is important that they have opportunities to find value in their work. METHODS: Eight focus groups were conducted with 45 CNAs from 4 nursing facilities. Thematic analysis and role theory were used to analyze the data. RESULTS: Participants identified with the roles of connector, advocate, overloaded worker, and companion. CONCLUSIONS: CNAs expressed a lack of work-related control in the advocate and overloaded worker roles, and satisfaction in the companion role. Adequate organizational resources can help CNAs gain more satisfaction and effectiveness in their work.
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Satisfação no Emprego , Assistentes de Enfermagem , Grupos Focais , Humanos , Relações Interprofissionais , Casas de Saúde , Carga de TrabalhoRESUMO
The circadian clock is a complex regulatory network that enhances plant growth and fitness in a constantly changing environment. In Arabidopsis (Arabidopsis thaliana), the clock is composed of numerous regulatory feedback loops in which REVEILLE8 (RVE8) and its homologs RVE4 and RVE6 act in a partially redundant manner to promote clock pace. Here, we report that the remaining members of the RVE8 clade, RVE3 and RVE5, play only minor roles in the regulation of clock function. However, we find that RVE8 clade proteins have unexpected functions in the modulation of light input to the clock and the control of plant growth at multiple stages of development. In seedlings, these proteins repress hypocotyl elongation in a daylength- and sucrose-dependent manner. Strikingly, adult rve4 6 8 and rve3 4 5 6 8 mutants are much larger than wild-type plants, with both increased leaf area and biomass. This size phenotype is associated with a faster growth rate and larger cell size and is not simply due to a delay in the transition to flowering. Gene expression and epistasis analysis reveal that the growth phenotypes of rve mutants are due to the misregulation of PHYTOCHROME INTERACTING FACTOR4 (PIF4) and PIF5 expression. Our results show that even small changes in PIF gene expression caused by the perturbation of clock gene function can have large effects on the growth of adult plants.
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Proteínas de Arabidopsis/genética , Arabidopsis/genética , Família Multigênica , Mutação , Fatores de Transcrição/genética , Arabidopsis/citologia , Arabidopsis/crescimento & desenvolvimento , Proteínas de Arabidopsis/classificação , Fatores de Transcrição Hélice-Alça-Hélice Básicos/genética , Biomassa , Tamanho Celular , Relógios Circadianos/genética , Epistasia Genética/efeitos dos fármacos , Regulação da Expressão Gênica no Desenvolvimento/efeitos da radiação , Regulação da Expressão Gênica de Plantas/efeitos da radiação , Hipocótilo/genética , Hipocótilo/crescimento & desenvolvimento , Luz , Filogenia , Folhas de Planta/genética , Folhas de Planta/crescimento & desenvolvimento , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Plântula/genética , Plântula/crescimento & desenvolvimento , Transdução de Sinais/genética , Transdução de Sinais/efeitos da radiação , Sacarose/metabolismo , Sacarose/farmacologia , Fatores de Transcrição/classificaçãoRESUMO
BACKGROUND: A paucity of information is available on direct care workers' (DCWs') experiences with loss when their clients (people with intellectual and developmental disabilities [I/DD]) die. This study explored DCWs' grief experiences, their coping methods and their needs for support. METHODS: A thematic analysis approach was used to examine data from nine focus groups with 60 DCWs from five community-based organizations that provide services to people with I/DD. RESULTS: Three themes (factors affecting DCW loss, ways that DCWs cope with loss and organizational issues affecting the bereavement experience) and associated subthemes emerged from the data. This highlighted not only DCW professional grief experiences but how organizational communication and policy affected their grief experience. CONCLUSIONS: DCWs experience grief in the workplace but may receive insufficient organizational bereavement supports. Recommendations are made for organizational policies and resources to improve organizational communication and assist DCWs in coping with their grief.
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Cuidadores/psicologia , Pesar , Pessoal de Saúde/psicologia , Deficiência Intelectual , Apoio Social , Adaptação Psicológica , Adulto , Idoso , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Apego ao Objeto , Adulto JovemRESUMO
Mitochondrial toxicity is emerging as a major mechanism underlying serious human health consequences. This work performs a high-throughput screen (HTS) of 176 environmental chemicals for mitochondrial toxicity utilizing a previously reported biosensor platform. This established HTS confirmed known mitochondrial toxins and identified novel mitotochondrial uncouplers such as 2, 2'-Methylenebis(4-chlorophenol) and pentachlorophenol. It also identified a mitochondrial 'structure activity relationship' (SAR) in the sense that multiple environmental chlorophenols are mitochondrial inhibitors and uncouplers. This study demonstrates proof-of-concept that a mitochondrial HTS assay detects known and novel environmental mitotoxicants, and could be used to quickly evaluate human health risks from mitotoxicants in the environment.
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Técnicas Biossensoriais/métodos , Poluentes Ambientais/toxicidade , Ensaios de Triagem em Larga Escala/métodos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Toxicologia/métodos , Linhagem Celular , Metabolismo Energético/efeitos dos fármacos , Células Epiteliais/efeitos dos fármacos , Células Epiteliais/fisiologia , Humanos , Neurônios/efeitos dos fármacos , Neurônios/fisiologia , Desacopladores/toxicidadeRESUMO
BACKGROUND: The study explored the grief process of persons with intellectual and developmental disabilities (PWIDDs) as perceived by direct care workers (DCWs) and how such workers can guide and support PWIDDs experiencing grief. MATERIALS AND METHODS: A thematic analysis approach was used to examine data from nine focus groups with 60 DCWs from five community-based organizations. RESULTS: Findings were supported in the context of seminal grief and bereavement theories. Three themes (i.e. reactions to loss, processing the loss and incorporating the loss) and related subthemes emerged from the data. CONCLUSIONS: PWIDDs are susceptible to traumatic grief, and DCWs are often key witnesses to such experiences. DCWs' perspectives can guide the development of grief and bereavement training which can lead to more tailored support systems.
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Atitude do Pessoal de Saúde , Cuidadores , Deficiências do Desenvolvimento/psicologia , Pesar , Deficiência Intelectual/psicologia , Adulto , Idoso , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Adulto JovemRESUMO
The Delphi technique was used to obtain expert panel consensus to prioritize content areas and delivery methods for developing staff grief and bereavement curriculum training in the intellectual and developmental disabilities (IDD) field. The Delphi technique was conducted with a panel of 18 experts from formal and informal disability caregiving, nursing, and hospice and bereavement service provision. Results showed that training should help staff identify and support service users experiencing grief. Importantly, staff also needs help in managing their own grief. Organizational policies and resources should be instituted to support the grief processes of both service users and staff. Practice-based applications are discussed, and research implications are presented for training evaluation.
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Luto , Cuidadores/psicologia , Técnica Delphi , Corpo Clínico/educação , Corpo Clínico/psicologia , Feminino , Humanos , Masculino , Pessoas com Deficiência Mental , Inquéritos e QuestionáriosRESUMO
A key unanswered question in plant biology is how a plant regulates metabolism to maximize performance across an array of biotic and abiotic environmental stresses. In this study, we addressed the potential breadth of transcriptional regulation that can alter accumulation of the defensive glucosinolate metabolites in Arabidopsis (Arabidopsis thaliana). A systematic yeast one-hybrid study was used to identify hundreds of unique potential regulatory interactions with a nearly complete complement of 21 promoters for the aliphatic glucosinolate pathway. Conducting high-throughput phenotypic validation, we showed that >75% of tested transcription factor (TF) mutants significantly altered the accumulation of the defensive glucosinolates. These glucosinolate phenotypes were conditional upon the environment and tissue type, suggesting that these TFs may allow the plant to tune its defenses to the local environment. Furthermore, the pattern of TF/promoter interactions could partially explain mutant phenotypes. This work shows that defense chemistry within Arabidopsis has a highly intricate transcriptional regulatory system that may allow for the optimization of defense metabolite accumulation across a broad array of environments.
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Arabidopsis/genética , Regulação da Expressão Gênica de Plantas , Glucosinolatos/metabolismo , Regiões Promotoras Genéticas/genética , Fatores de Transcrição/genética , Arabidopsis/imunologia , Arabidopsis/fisiologia , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Análise por Conglomerados , Meio Ambiente , Redes Reguladoras de Genes , Mutagênese Insercional , Fenótipo , Plantas Geneticamente Modificadas , Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/metabolismo , Estresse Fisiológico , Fatores de Transcrição/metabolismoRESUMO
Many persons with Parkinson's disease are cared for by family members. The strain of caregiving can negatively affect the health of the caregiver and affect long-term care decisions, making caregiver support a priority. This study highlights the importance of peer-led support groups for family caregivers of persons with Parkinson's disease.
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Cuidadores/psicologia , Família/psicologia , Doença de Parkinson/psicologia , Doença de Parkinson/terapia , Grupos de Autoajuda , Apoio Social , Idoso , Feminino , Humanos , Assistência de Longa Duração , Masculino , Pessoa de Meia-Idade , Grupo AssociadoRESUMO
BACKGROUND: Previous research indicates that work stress contributes to intentions to quit among direct care workers (DCWs) who provide services to people with intellectual and developmental disability (IDD). Though resources can help DCWs cope and remain in a job, little is known about how various dimensions of work stress and resources (social and personal resources) are associated with intentions to quit. METHODS: A total of 323 DCWs from 5 community-based IDD organisations completed a self-administered survey. We conducted multiple regression analyses to examine main and interaction effects of work stress and resources (work social support and internal locus of control) on intentions to quit. RESULTS: Work overload was a significant stressor, and work social support (i.e., supervisory support) was associated with low intentions to quit. The association between locus of control and intention to quit depended on the levels of a stressor: DCWs' lack of participation in decision-making. CONCLUSIONS: Supervisory support and an internal locus of control may assist DCWs in managing their stress.
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Atitude do Pessoal de Saúde , Pessoal de Saúde/psicologia , Intenção , Satisfação no Emprego , Estresse Psicológico , Carga de Trabalho/psicologia , Adaptação Psicológica , Adulto , Cuidadores , Estudos Transversais , Feminino , Humanos , Controle Interno-Externo , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Fatores de Risco , Apoio Social , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Despite a plethora of instruments that measure the built environment with respect to its effect on potential physical activity, little is known about how relevant these instruments are for people with disabilities (PWDs). OBJECTIVE: This review comprises an in-depth review of instruments related to the built environment and physical activity, as well as an examination of such instruments to determine their applicability for PWDs. METHODS: In this paper, the term "built environment" refers to human-made structures (e.g., urban and rural design characteristics, recreational structures) that may facilitate or impede an individual's ability to be physically active. A content analysis was conducted on 95 instruments measuring walkability, bikeability, and recreation with respect to disability and universal design (UD) relevance. Instruments were also cataloged according to other dimensions, including psychometric properties, data collection modalities, and impact or use. RESULTS: Roughly one third of all instruments include some disability-specific items, and only a few UD principles are consistently demonstrated across all instruments. Psychometric information is available for approximately one half of the instruments. Most instruments use objective/audit methods of data collection, with less using subjective/perceived and Geographic Information System (GIS) methods. With respect to instrument impact/use, just over one half of the instruments have articles cited in the peer-reviewed literature. CONCLUSIONS: Recommendations for new and revised built environment instruments include more focus on specific disability populations, incorporation of all UD principles, as well as attention to psychometric quality and measurement specificity.
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Ciclismo , Pessoas com Deficiência , Planejamento Ambiental , Recreação , Caminhada , Coleta de Dados , Sistemas de Informação Geográfica , Humanos , PsicometriaRESUMO
OBJECTIVE: To determine the effect of age and vocabulary as predictors of performance on neuropsychological tests in children with and without traumatic brain injury (TBI). SETTING AND PARTICIPANTS: In the first study, 213 school-age children were evaluated in their public school environment. In the second study, 65 children with a history of TBI were examined in a medical centre. MAJOR OUTCOME MEASURES: Age of the child and two estimates of intellectual functioning (Vocabulary and Block Design) were used to predict performance on the Barrow Neurological Institute Screen for Higher Cerebral Functions in School-Age Children (BNIS-C), a verbal fluency task and the Halstead Finger Tapping Test (HFTT). RESULTS: In study 1, the exact age of the child was the strongest predictor of performance (e.g. 47.5% of the variability on the BNIS-C) in normal school-age children. Vocabulary level accounted for less than 10% of the variability across the three measures. In children with TBI (study 2; n = 65) age effects remained strong, but a greater vocabulary effect was observed on two of the three measures (i.e. 29.2% on the BNIS-C and 18.8% on verbal fluency). CONCLUSIONS: While age is an important predictor of neuropsychological test performance in children, post-injury vocabulary level appears to be an important moderator variable.