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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

WAIS-III psichometrinės charakteristikos / WAIS-III: psychometric characteristics

Geleževičiūtė, Kristina 20 June 2014 (has links)
Santrauka Šio tyrimo tikslas – įvertinti WAIS-III psichometrines charakteristikas. Tyrime iš viso dalyvavo 75 tiriamieji, kuriems kvalifikuoti tyrėjai pateikė WAIS-III užduotis. Atrenkant tyrimo dalyvius, buvo vykdoma tikslinė atranka, remiantis šiais kriterijais: amžiumi, gyvenamąja vieta ir išsilavinimu. Šiame tyrime dalyvavo 36 vyrai ir 39 moterys. Tiriamųjų amžius nuo 16 iki 79 metų. Vertinant WAIS-III psichometrines charakteristikas, buvo įvertintas atskirų subtestų užduočių tinkamumas, naujų užduočių tinkamumas, verbalinių ir neverbalinių subtestų patikimumas dalijimo pusiau metodu ir testo konstrukto validumas. Buvo vertintas verbalinių ir neverbalinių subtestų užduočių tinkamumas, remiantis užduoties sunkumo bei diferencinės galios indeksais, koreguotos koreliacijos koeficientu. Labiausiai pakito Žodyno subtestas, kuriame buvo paliktas 21 originalios versijos žodis ir pridėta 12 naujų žodžių. Panašumų subteste buvo palikta 19 originalios versijos užduočių ir pridėtos 3 naujos. Informacijos subteste buvo palikti 24 originalios versijos klausimai ir pridėta 4 nauji. Supratingumo subteste buvo palikta 18 originalios versijos užduočių ir pridėtos 2 naujos. Visų verbalinių subtestų užduotys buvo išdėliotos nauja tvarka, išskyrus Skaičių eilė ir Raidžių – skaičių eilės. Paveikslėlių užbaigimo, Kubelių kompozicijos, Matricų ir Paveikslėlių užbaigimo užduotys buvo išdėliotos nauja tvarka. Objektų surinkimo subtestas buvo paliktas toks, koks pateikiamas originalioje versijoje... [toliau žr. visą tekstą] / Summary The purpose of this research is to evaluate WAIS-III psychometric characteristics. In total 75 subjects participated in the research; they were provided with WAIS-III tasks by the qualified researchers. When selecting the participants for the research, a target selection was carried out based on the following criteria: age, place of residence and education. 36 men and 39 women participated in this research. The age of the participants was from 16 to 79 years. While evaluating WAIS-III psychometric characteristics suitability of separate tasks of the subtests was estimated, as well as availability of new tasks, reliability of verbal and non-verbal subtests by the odd/even method and also the validity of the construct of the test. Suitability of the tasks of the verbal and non-verbal subtests was evaluated based on the indexes of the complexity of the task and the differential power, coefficient of the adjusted correlation. The Vocabulary subtest was transformed the most, in it 21 words from the original version were maintained and 12 new words added. In the Similarities subtest 19 tasks from the original version were maintained and 3 new tasks added. In the Information subtest 24 questions from the original version were maintained and 4 new questions added. In the Comprehension subtests 18 tasks were maintained from the original version and 2 new tasks were added. All the tasks of verbal subtests were set out in a new order, except for the Digit Span and Letter –... [to full text]
2

Diskrepansen mellan WAIS-III respektive WAIS-III NI för kognitivt friska individer

Lindh, Leilani, Sjöberg, Aron January 2008 (has links)
<p>Trettio kognitivt friska testpersoner (ålder M=31,9 år, utbildning M=16,3 år) testades med både WAIS-III (”Wechsler Adult Intelligence Scale - third edition”) och WAIS-III NI (”WAIS-III som neuropsykologiskt instrument”) för att undersöka eventuella skillnader i resultat mellan testen. Testpersonerna fick en signifikant ökning vid testning med WAIS-III NI jämfört med testning med WAIS-III på HIK (11,1), VIK (14,7), PIK (3,9), VF (11,4), POI (5,5), AMI (8,8), BK (1,6), LI (3,3), BL (0,6), AR (3,1), SR (1,1), IN (1,5) och FÖ (2,8). Det fanns en signifikant positiv korrelation mellan ålder och hur stor diskrepansen var mellan de olika versionerna för BL (r=0,379, p=0,039) och MA (r=0,413, p=0,023) samt en negativ korrelation mellan ålder och diskrepansen på FÖ (r=-0,422, p=0,020). Det fanns en signifikant negativ korrelation mellan utbildningsnivå och hur stor diskrepansen var mellan de olika versionerna av AR (r=-0,399, p=0,029).</p>
3

Diskrepansen mellan WAIS-III respektive WAIS-III NI för kognitivt friska individer

Lindh, Leilani, Sjöberg, Aron January 2008 (has links)
Trettio kognitivt friska testpersoner (ålder M=31,9 år, utbildning M=16,3 år) testades med både WAIS-III (”Wechsler Adult Intelligence Scale - third edition”) och WAIS-III NI (”WAIS-III som neuropsykologiskt instrument”) för att undersöka eventuella skillnader i resultat mellan testen. Testpersonerna fick en signifikant ökning vid testning med WAIS-III NI jämfört med testning med WAIS-III på HIK (11,1), VIK (14,7), PIK (3,9), VF (11,4), POI (5,5), AMI (8,8), BK (1,6), LI (3,3), BL (0,6), AR (3,1), SR (1,1), IN (1,5) och FÖ (2,8). Det fanns en signifikant positiv korrelation mellan ålder och hur stor diskrepansen var mellan de olika versionerna för BL (r=0,379, p=0,039) och MA (r=0,413, p=0,023) samt en negativ korrelation mellan ålder och diskrepansen på FÖ (r=-0,422, p=0,020). Det fanns en signifikant negativ korrelation mellan utbildningsnivå och hur stor diskrepansen var mellan de olika versionerna av AR (r=-0,399, p=0,029).
4

PERFORMANCE ON ELEMENTARY COGNITIVE TASKS IN DOWN SYNDROME AND FRAGILE X SYNDROME

Koenig, Katherine A. January 2008 (has links)
No description available.
5

Personlighetsegenskaper och kognitiva förmågor : En korrelationsstudie

Rorsman, Dan January 2006 (has links)
<p>Detta är en korrelationsstudie med avsikt att undersöka förhållandet mellan personlighetsegenskaper och kognitiva förmågor samt detta förhållandes inverkan på prestation. Studien är baserad på övningstestningar (n = 176) med WAIS-III, FAS, det lexikala beslutstestet SLDT samt personlighetsformuläret SSP, genomförda under informella former. Signifikanta negativa korrelationer förelåg mellan resultat på kognitiva test och personlighetsvariablerna Bitterhet, Somatisk Ångestbenägenhet, Psykisk Ångestbenägenhet, Stresskänslighet och Misstroende. Ett starkt positivt samband framkom mellan Somatisk ångestbenägenhet och antalet som riktiga ord skattade pseudoord i SLDT. Ett starkt negativt samband framkom mellan Bitterhet och samtliga skalindex i WAIS-III. Signifikanta negativa korrelationer förelåg vidare mellan en genom komponentanalys erhållen Neuroticism-faktor och resultat på WAIS-III. Jämförda med tidigare forskningsresultat är flera här redovisade korrelationer anmärkningsvärt starka. Som en bland flera tänkbara förklaringar till detta diskuteras möjligheten av stärkt ekologisk validitet vid testning under informella omständigheter. Vidare diskuteras bl a möjliga kopplingar mellan Somatisk ångestbenägenhet och alexitymi respektive verbal rigiditet samt mellan Bitterhet och flytande intelligens respektive exekutiva funktioner.</p>
6

Comparing individuals with learning disability and those with borderline IQ : a confirmatory factor analysis of the Wechsler Adult Intelligence Scale (3rd edition)

MacLean, Hannah Ng On-Nar January 2011 (has links)
Background: Support for the four factor construct validity of the third edition of the Wechsler Adult Intelligence Scale (WAIS-III) has been found in clinical and non clinical populations but some studies question whether more complex models consistent with the concepts of fluid and crystallised intelligence provide a better explanation of the data. The WAIS-III is frequently used in the diagnosis of learning disability, however, previous exploratory factor analysis of data from a population with low IQ did not support the explicit four factor structure of the WAIS-III. Method: A confirmatory factor analysis of the WAIS-III was carried out on data from people with severe and significant learning disability and people with borderline IQ (IQ = 70-79). Results: The data from the borderline IQ sample and the sample with significant learning disability showed at best a weak fit to the explicit four factor models and more complex five or six factor models. However fit of the data from the sample with severe learning disability was poor for all models. Discussion: The findings show little support for the explicit four factor construct validity of the WAIS-III for people with borderline IQ or significant or severe intellectual impairment. Some support is found for the direction taken by the new Wechsler children’s and adult scales (WISC-IV & WAIS-IV) in aligning interpretation of the scales more closely to concepts such as fluid and crystallised theory. The research also suggests the cut-off point of IQ 70 is not reflective of an actual difference in cognitive profile as measured by the WAIS-III. Limitations of this study and implications for further research are also discussed.
7

Personlighetsegenskaper och kognitiva förmågor : En korrelationsstudie

Rorsman, Dan January 2006 (has links)
Detta är en korrelationsstudie med avsikt att undersöka förhållandet mellan personlighetsegenskaper och kognitiva förmågor samt detta förhållandes inverkan på prestation. Studien är baserad på övningstestningar (n = 176) med WAIS-III, FAS, det lexikala beslutstestet SLDT samt personlighetsformuläret SSP, genomförda under informella former. Signifikanta negativa korrelationer förelåg mellan resultat på kognitiva test och personlighetsvariablerna Bitterhet, Somatisk Ångestbenägenhet, Psykisk Ångestbenägenhet, Stresskänslighet och Misstroende. Ett starkt positivt samband framkom mellan Somatisk ångestbenägenhet och antalet som riktiga ord skattade pseudoord i SLDT. Ett starkt negativt samband framkom mellan Bitterhet och samtliga skalindex i WAIS-III. Signifikanta negativa korrelationer förelåg vidare mellan en genom komponentanalys erhållen Neuroticism-faktor och resultat på WAIS-III. Jämförda med tidigare forskningsresultat är flera här redovisade korrelationer anmärkningsvärt starka. Som en bland flera tänkbara förklaringar till detta diskuteras möjligheten av stärkt ekologisk validitet vid testning under informella omständigheter. Vidare diskuteras bl a möjliga kopplingar mellan Somatisk ångestbenägenhet och alexitymi respektive verbal rigiditet samt mellan Bitterhet och flytande intelligens respektive exekutiva funktioner.
8

Desempenho cognitivo e transtornos de humor em adultos jovens: contribuições das esclas Weschler de Inteligência

Teixeira, Stefânia Martins 10 December 2013 (has links)
Made available in DSpace on 2016-03-22T17:27:28Z (GMT). No. of bitstreams: 1 stefania teixira.pdf: 1306756 bytes, checksum: 58a6655f06083a2f39d1590a4c8945cc (MD5) Previous issue date: 2013-12-10 / Objective: The aim of this study is to correlate the cognitive impairment with a severity symptoms in young adults with mood disorder, as well, to analyze the difference between the groups with diagnostic and healthy controls population- based. Methods: Cross-sectional study with young adults of 21 to 30 years old who participated from a population-base sample. The impairment cognitive were assessed using Wechsler Scale of Intelligence (WAIS-III). Depressive symptoms were assessed using the Beck Depression Inventory (BDI-II), while the manic symptoms were assessed using the Young Mania Rating Scale (YMRS). Results: The total sample consisted of 83 participants which were distributed in: 13 with bipolar disorder, 34 with depressive symptoms and 36 healthy controls. The cognitive performance was not associated with severity of mood symptoms. In this sample of young adults, it was also found cognitive impairment between subjects with bipolar disorder and major depression when compared the controls. Conclusion: The results suggest that the young adults with bipolar disorder or depression don t come up with cognitive impairment when measured at WAIS III / Objetivo: Correlacionar o desempenho cognitivo com a severidade de sintomas maníacos e depressivos em adultos jovens com transtornos de humor, bem como, verificar a diferença entre os grupos com diagnóstico e controles populacionais. Método: Estudo transversal aninhado a um estudo de base populacional com jovens de 21 a 30 anos. Para avaliação do desempenho cognitivo foi utilizado a Escala Wechsler de Inteligência para Adultos (WAIS-III). Os sintomas depressivos foram avaliados através da Beck Depression Inventory (BDI-II), enquanto os sintomas maníacos por meio da Young Mania Rating Scale (YMRS). Resultados: A amostra total contou com 83 participantes, os quais estavam distribuídos em: 13 com transtorno bipolar, 34 com sintomas depressivos e 36 controles saudáveis. O desempenho cognitivo não foi associado à severidade dos sintomas de humor. Nesta amostra de adultos jovens, também não foi encontrado prejuízo cognitivo entre os indivíduos com diagnóstico de transtorno bipolar e depressão quando comparados aos controles. Conclusão: Os achados sugerem que adultos jovens com transtorno bipolar ou depressão não apresentam comprometimento cognitivo quando mensurado pelo WAIS III
9

WAIS-III verbalinių subtestų užduočių diferencinė analizė / Analysis of differential item functioning in wais-iii verbal subtests

Malakauskaitė, Rima 23 June 2014 (has links)
WAIS-III (Wechsler intelekto matavimo skalės suaugusiems trečioji versija) – vienas plačiausiai pasaulyje naudojamų intelekto matavimo instrumentų. Vienas iš testo šališkumo šaltinių yra užduočių atlikimo skirtumai atskirose grupėse, lyginant asmenis, turinčius tokius pačius gebėjimus – skirtingas užduočių funkcionavimas. Tyrimo tikslas buvo įvertinti Lietuvoje adaptuojamos WAIS–III verbalinės testo dalies užduočių šališkumą. Užduočių funkcionavimas buvo tikrinamas lyginant tiriamųjų grupes pagal lytį (172 moterys ir 128 vyrai) ir išsilavinimą (209 tiriamiejis su viduriniu ir žemesniu išsilavinimu ir 89 tiriamieji su aukštesniuoju ir aukštuoju išsilavinimu). Užduočių atlikimas buvo analizuojamas iš viso šešiuose WAIS–III subtestuose (Paveikslėlių užbaigimo, Žodyno, Panašumų, Aritmetikos, Informacijos ir Supratingumo). Rasta, kad iš 148 analizuotų užduočių 20 skirtingai funkcionavo vyrų ir moterų grupėse bei 19 grupėse pagal išsilavinimą (daugiausia skirtumų rasta Žodyno ir Informacijos subtestuose). Daugiausia buvo užduoties sunkumo skirtumų, kurių skaičius buvo labai panašus ir lyginant vyrų ir moterų užduočių atlikimą, ir tiriamuosius pagal išsilavinimą. Rezultatai parodė, kad iš užduočių, kurios skyrėsi skiriamąja geba, yra žymiai daugiau, pagal gebėjimus geriau diferencijuojančių moteris nei vyrus ir asmenis su viduriniu ir žemesniu išsilavinimu. / WAIS–III (Wechsler Adult‘s Intelligence Scale - Third edition) – is one of the most widely used intelligence measuring scale in the world, which has also been adapted in Lithuania. A significant part of researches is related to scale‘s bias – one of it‘s sources is Differential item functioning in separate groups, when participants have the same abilities. The aim of this work was to assess the bias of verbal subtests items in Lithuanian WAIS-III version. Differential item functioning was tested comparing groups by sex (128 males and 172 females) and education (209 participants had a secondary and lower education, 89 had further and university education), in six WAIS-III subtests (Picture Completion, Vocabulary, Similarities, Arithmetic, Information and Comprehension). Data analysis showed that 20 items from 148 were functioning differently for males and females, and 19 items functioned differently in groups by education (the differences were mostly in Vocabulary and Information subtests). The biggest part of differences were of uniform DIF – the number was very similar in males and females groups, also in education groups. The bigger part of nonuniform DIF were more discriminating for females than males and participants with secondary and lower education.
10

Distrofia miotônica tipo 1 estudo de imagem cerebral, aspectos psicológicos, psicométricos e qualidade de vida / Myotonic dystrophy type 1 brain imaging study, psychological, psychometrics aspects and quality of life

Mendonça, Helena Rezende Silva, 1973- 16 August 2018 (has links)
Orientadores: Anamarli Nucci, Carlos Alberto Mantovani Guerreiro / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-16T19:53:45Z (GMT). No. of bitstreams: 1 Mendonca_HelenaRezendeSilva_M.pdf: 1760914 bytes, checksum: b24862dde5a6953468b12b21747f5121 (MD5) Previous issue date: 2010 / Resumo: Introdução: A Distrofia Miotônica tipo 1 (DM1) é doença conseqüente a repetição de tripletos CTG, locus 19 q13.2-13.3, com manifestações sistêmicas entre as quais as neuromusculares são as mais limitantes e estudadas. O comprometimento cerebral e suas repercussões neuropsicológicas e na qualidade de vida é bem menos conhecido e dimensionado. Objetivo: Propôs-se conhecer as características de uma coorte de pacientes DM1, identificar possíveis alterações psicológicas, psicométricas e de qualidade de vida, avaliar possível atrofia cerebral e alteração da substância branca. Métodos: Estudo descritivo e comparativo incluindo 15 pacientes DM1, geneticamente confirmados, pareados por sexo, idade e escolaridade a controles (n=15) sem doenças neuropsicológicas conhecidas. Todos foram submetidos à avaliação clínico-neurológica, responderam ao Mini Exame do Estado Mental (MEEM), questionários SF-36 e de depressão de Beck (QDB), escala de sonolência de Epworth, e à Ressonância Magnética cerebral (RMc). Aplicou-se o Wechsler Adult Inteligence Scale (WAIS III) nos pacientes. As neuroimagens foram avaliadas por inspeção visual e medidas de atrofia cerebral. Usou-se análise estatística descritiva e o teste de Mann-Whitney, com nível de significância p< 0,05. Resultados: A miotonia clinica foi identificável em 80% dos pacientes, os quais tiveram escores 3 a 5 pela Muscular impairment rating scale (MIRS). Houve maior freqüência de comorbidades na DM1. A qualidade de vida foi comprometida no domínio físico, mas não no mental. Escores de sonolência e de depressão entre DM1 vs controles, não foram diferentes, exceto nos itens "sentimento de culpa" e "falta de energia", pelo QDB. O MEEM mostrou baixo desempenho em orientação espacial e cálculo nos DM1. O WAIS III revelou um paciente com QI na média superior, 8 na média e 6 na média inferior, com baixos escores em compreensão. A RMc mostrou significativo alargamento generalizado dos ventrículos nos pacientes; maior freqüência de atrofia cerebral leve, sem diferença estatística; alta freqüência de lesões difusas na substância branca, com significância estatística nas lesões parietais esquerdas na DM1-infantil. Os diâmetros septo-caudado direito e esquerdo, e suas razões com o diâmetro biparietal apresentaram diferenças significativas. Conclusão: O comprometimento muscular foi proporcional à duração da DM1 e somado às demais limitações físicas, possivelmente contribuiu para a percepção da perda da qualidade de vida e falta de energia. Alterações cognitivas quanto à orientação espacial, cálculo, senso comum e juízo social foram observadas através de instrumentos não dependentes de auto-avaliação, em contraste à percepção de saúde mental pelos pacientes. Alterações da estrutura cerebral na DM1 incluíram atrofia e comprometimento da substância branca, as quais possivelmente estão associadas aos distúrbios neuropsíquicos. Estudos futuros refinando a neuroimagem e os testes neuropsicológicos poderão definir correlações entre a disfunção e estrutura cerebral na DM1 / Abstract: Introduction: Myotonic dystrophy type 1 (DM1) is a disease associated to CTG repeats in locus 19 q13.2-13.3 with systemic manifestations. The neuromuscular deficits are the most prominent and studied. Brain abnormalities and its neuropsychological repercussions on quality of life is less well known and measured. Objective: To investigate the characteristics of a cohort of DM1 patients, to identify possible psychological, psychometric and quality of life changes, and to assess possible brain atrophy and white matter lesions. Methods: Descriptive and comparative study including 15 DM1 patients, genetically confirmed, matched by sex, age and education with controls (n = 15) without neuropsychological diseases known. All study participants underwent clinical neurological evaluation, responded to the Mini-Mental State Examination (MMSE), the SF-36 and the Beck Depression Inventory (BDI), Epworth Sleepiness Scale, and were subjected to brain magnetic resonance (bMRI). We applied the Wechsler Adult Intelligence Scale (WAIS III) to patients. Neuroimages were assessed by means of visual inspection and measurements of brain atrophy. We used descriptive statistics and the Mann-Whitney test, with significance level p <0.05. Results: Clinical myotonia was identifiable in 80% of patients who scored 3 to 5 according to the muscular impairment rating scale (MIRS). There was a higher frequency of comorbidities in DM1. Quality of life was compromised in the physical, but not in mental domain. Sleepiness and depression scores among DM1 versus controls were not different, except for items "guilt" and "loss of energy" according to the BDI. MMSE showed poor performance in spatial orientation and calculation in DM1. WAIS III revealed one patient with high average IQ, 8 with average IQ and 6 with low average, and low scores in comprehension. bMRI showed significant generalized enlargement of ventricles in patients, increased frequency of mild cerebral atrophy, with no statistical difference, high frequency of diffuse lesions in the white matter, with statistical significance in the left parietal lobe lesions in childhood-onset DM1. Septum-caudate right and left diameters and their ratios with the biparietal diameter showed significant differences. Conclusion: Muscular impairment was proportional to the duration of DM1 and, which added to other physical limitations, possibly contributed to the perceived loss of quality of life and loss of energy. Cognitive changes as to the spatial orientation, calculation, common sense and social judgments were observed by means of non-dependent self-assessment, in contrast to the patients' perception of mental health. Changes in brain structure in DM1 included atrophy and white matter impairment, which are possibly associated with neuropsychological abnormalities. Further studies refining the correlations between brain structure and neuropsychological tests are necessary / Mestrado / Neurologia / Mestre em Ciências Médicas

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