scholarly journals The Factor Structure of the Boston Diagnostic Aphasia Examination, Third Edition

2019 ◽  
Vol 25 (7) ◽  
pp. 772-776 ◽  
Author(s):  
Mandy W.M. Fong ◽  
Ryan Van Patten ◽  
Robert P. Fucetola
Keyword(s):  
Construct Validity ◽  
Factor Structure ◽  
Language Impairment ◽  
Phonological Processing ◽  
Principal Component ◽  
Testing Time ◽  
Auditory Comprehension ◽  
Language Abilities ◽  
Language Functions ◽  
Neuropsychological Evaluations

AbstractObjective: The Boston Diagnostic Aphasia Examination (BDAE) is one of the most commonly used aphasia batteries. The newest edition has undergone significant revisions since its original publication in 1972, but existing evidence for its validity is lacking. We examined the construct validity of BDAE-3 and identified the factor structure of this battery. Method: A total of 355 people with aphasia of various types and severity completed neuropsychological evaluations to assess their patterns of language impairment. A principal component analysis with varimax rotation was conducted to examine the components of BDAE-3 subtests. Results: Five components accounting for over 70% of the BDAE-3 total variance were found. The five language factors identified were auditory comprehension/ideomotor praxis, naming and reading, articulation-repetition, grammatical comprehension, and phonological processing. Conclusions: Our results show that the BDAE-3 demonstrates good construct validity, and certain language functions remain primary, distinct language domains (i.e., receptive vs. expressive language) across severities of aphasia. Overall, our findings inform clinical practice by outlining the inherent structure of language abilities in people with aphasia. Clinicians can utilize the findings to select core BDAE-3 tests that are most representative of their respective functions, thereby reducing the total testing time while preserving diagnostic sensitivity. (JINS, 2019, 25, 772–776)

Objective Indices of Severity of Chronic Aphasia in Stroke Patients

1971 ◽  
Vol 36 (2) ◽  
pp. 167-207 ◽  
Author(s):  
Aaron Smith
Keyword(s):  
Language Impairment ◽  
Speech Comprehension ◽  
Auditory Comprehension ◽  
Stroke Patients ◽  
Cerebrovascular Lesions ◽  
Highly Educated ◽  
Language Functions ◽  
Left Handed ◽  
Language Tests ◽  
Chronic Aphasia

Standardized language tests of 78 stroke patients with chronic aphasia indicated: (1) All four language components were impaired in all 78 aphasics. (2) The severity of comprehension defect generally reflected the severity of overall language impairment. (3) In hemiplegics and nonhemiplegics, writing was more severely impaired than speech, comprehension, and reading. (4) Severity of language defects increased with advancing age. (5) Residual language functions in highly educated aphasics were greater than those in less educated aphasics. (6) Left-handed adults are less likely than dextrals to sustain chronic aphasia as a result of cerebrovascular lesions. (7) Patterns of associated language defects did not coincide with the traditional dichotomy of Broca’s “motor” vs Wernicke’s “sensory” and “conduction” aphasia as originally described. Marked impairment in visual ideational, spatial, and memory functions characteristic of deficits resulting from right posterior lesions was associated with severe comprehension defects. Since the same finding was consistently reported in several earlier studies, the results suggest that (1) cerebrovascular lesions resulting in chronic aphasia involve the nondominant as well as the left hemisphere more frequently than is commonly believed, and (2) the nondominant hemisphere plays a significant role in auditory comprehension and in recovery of language functions in aphasia.

scholarly journals Arabic Version of the Electronic Health Literacy Scale in Arabic-Speaking Individuals in Sweden: Prospective Psychometric Evaluation Study (Preprint)

2020 ◽  
Author(s):  
Josefin Wångdahl ◽  
Karuna Dahlberg ◽  
Maria Jaensson ◽  
Ulrica Nilsson
Keyword(s):  
Health Literacy ◽  
Construct Validity ◽  
Factor Structure ◽  
Internal Consistency ◽  
Psychometric Evaluation ◽  
Principal Component ◽  
Arabic Version ◽  
Ehealth Literacy ◽  
Test Retest Reliability ◽  
Arabic Speaking

BACKGROUND Health information is often communicated through the internet. It is vital for the end user to have a range of digital skills as well as understand the information to promote their health. There is a valid and reliable 8-item instrument, the Electronic Health Literacy Scale (eHEALS), that evaluates these skills. The number of Arabic-speaking people migrating to Sweden and to other parts of the world is increasing due to unstable military and political situations in their countries of origin. Poor health and limited health literacy have been described in this population in Sweden. Still, to our knowledge, an Arabic version of eHEALS has not been tested for validity or reliability. Thus, Arabic-speaking populations in Sweden cannot be included in studies measuring eHealth literacy, which does not support equal treatment in health care. OBJECTIVE The aim of this study was to translate and adapt the original English eHEALS version into Arabic and to evaluate its psychometric properties. METHODS The eHEALS was rigorously translated, adapted, and evaluated for content validity. We conducted prospective psychometric evaluation with natively Arabic-speaking participants living in Sweden. Construct validity, factor structure, internal consistency, and test-retest reliability were evaluated using Spearman correlation, principal component analysis, Cronbach α, and weighted quadratic Cohen κ, respectively. RESULTS The study population consisted of Arabic-speaking participants (n=298; age: mean 41.8 years, SD 10.5). Construct validity was supported with weak and moderate correlations. Principal component factor analysis revealed a one-factor structure. Internal consistency was high (Cronbach α=0.92); test-retest reliability was acceptable (weighted quadratic Cohen κ=0.76). Evaluation indicated that eHealth literacy threshold values should be dichotomized (limited and sufficient) rather than trichotomized (inadequate, problematic, and sufficient). CONCLUSIONS The Arabic version of eHEALS, a unidimensional scale that is valid and reliable for measuring eHealth literacy among natively Arabic-speaking people in Sweden, was found to be acceptable and feasible in a general population.

scholarly journals Inconsistent lateralisation of language functions: a risk factor for language impairment?

2019 ◽  
Author(s):  
Abigail Bradshaw ◽  
Zoe Victoria Joan Woodhead ◽  
Paul Andrew Thompson ◽  
Dorothy Vera Margaret Bishop
Keyword(s):  
Language Impairment ◽  
Developmental Disorder ◽  
Language Disorder ◽  
Language Skills ◽  
Transcranial Doppler Sonography ◽  
Language Ability ◽  
Language Abilities ◽  
Language Functions ◽  
Semantic Decision ◽  
Functional Transcranial Doppler Sonography

Disruption to language lateralisation has been proposed as a cause of developmental language impairments. In this study we tested the idea that consistency of lateralisation across different language functions is associated with language ability. A large sample of adults with variable language abilities (N=67 with a developmental disorder affecting language and N=37 controls) were recruited. Lateralisation was measured using functional transcranial Doppler sonography (fTCD) for three language tasks that engage different language sub-processes (phonological decision, semantic decision and sentence generation). The whole sample was divided into those with consistent versus inconsistent lateralisation across the three tasks. Language ability (using a battery of standardised tests) was compared between the consistent and inconsistent groups. The results did not show a significant effect of lateralisation consistency on language skills. However, 26 of 31 (84%) of individuals with inconsistent lateralisation were in the disorder group, compared to 41 of 73 (56%) of those with consistent lateralisation, a difference that was higher than would be expected by chance. The developmental disorder group also demonstrated weaker correlations between laterality indices across pairs of tasks. In summary, although the data did not support the hypothesis that inconsistent language lateralisation is a major cause of poor language skills, the results suggested that some subtypes of language disorder are associated with inefficient distribution of language functions between hemispheres. Inconsistent lateralisation could be a causal factor in the aetiology of language disorder, or may arise in some cases as the consequence of developmental disorder, possibly reflective of compensatory reorganisation.

scholarly journals Arabic Version of the Electronic Health Literacy Scale in Arabic-Speaking Individuals in Sweden: Prospective Psychometric Evaluation Study

10.2196/24466 ◽  
2021 ◽  
Vol 23 (3) ◽  
pp. e24466
Author(s):  
Josefin Wångdahl ◽  
Karuna Dahlberg ◽  
Maria Jaensson ◽  
Ulrica Nilsson
Keyword(s):  
Health Literacy ◽  
Construct Validity ◽  
Factor Structure ◽  
Internal Consistency ◽  
Psychometric Evaluation ◽  
Principal Component ◽  
Arabic Version ◽  
Ehealth Literacy ◽  
Test Retest Reliability ◽  
Arabic Speaking

Background Health information is often communicated through the internet. It is vital for the end user to have a range of digital skills as well as understand the information to promote their health. There is a valid and reliable 8-item instrument, the Electronic Health Literacy Scale (eHEALS), that evaluates these skills. The number of Arabic-speaking people migrating to Sweden and to other parts of the world is increasing due to unstable military and political situations in their countries of origin. Poor health and limited health literacy have been described in this population in Sweden. Still, to our knowledge, an Arabic version of eHEALS has not been tested for validity or reliability. Thus, Arabic-speaking populations in Sweden cannot be included in studies measuring eHealth literacy, which does not support equal treatment in health care. Objective The aim of this study was to translate and adapt the original English eHEALS version into Arabic and to evaluate its psychometric properties. Methods The eHEALS was rigorously translated, adapted, and evaluated for content validity. We conducted prospective psychometric evaluation with natively Arabic-speaking participants living in Sweden. Construct validity, factor structure, internal consistency, and test-retest reliability were evaluated using Spearman correlation, principal component analysis, Cronbach α, and weighted quadratic Cohen κ, respectively. Results The study population consisted of Arabic-speaking participants (n=298; age: mean 41.8 years, SD 10.5). Construct validity was supported with weak and moderate correlations. Principal component factor analysis revealed a one-factor structure. Internal consistency was high (Cronbach α=0.92); test-retest reliability was acceptable (weighted quadratic Cohen κ=0.76). Evaluation indicated that eHealth literacy threshold values should be dichotomized (limited and sufficient) rather than trichotomized (inadequate, problematic, and sufficient). Conclusions The Arabic version of eHEALS, a unidimensional scale that is valid and reliable for measuring eHealth literacy among natively Arabic-speaking people in Sweden, was found to be acceptable and feasible in a general population.

Construct Validity of Sensation Seeking: A Psychometric Investigation

1999 ◽  
Vol 20 (3) ◽  
pp. 155-171 ◽  
Author(s):  
André Beauducel ◽  
Burkhard Brocke ◽  
Alexander Strobel ◽  
Anja Strobel
Keyword(s):  
Substance Use ◽  
Construct Validity ◽  
Psychometric Properties ◽  
Factor Structure ◽  
Sensation Seeking ◽  
German Version ◽  
Trait Theory ◽  
Multilevel Theory ◽  
Sensation Seeking Scale ◽  
Psychometric Investigation

Abstract: Zuckerman postulated a biopsychological multilevel theory of Sensation Seeking, which is part of a more complex multi-trait theory, the Alternative Five. The Sensation Seeking Scale Form V (SSS V) was developed for the measurement of Sensation Seeking. The process of validation of Sensation Seeking as part of a multilevel theory includes analyses of relations within and between several levels of measurement. The present study investigates validity and basic psychometric properties of a German version of the SSS V in a broader context of psychometric traits. - The 120 participants were mainly students. They completed the SSS V, the Venturesomeness- and Impulsiveness-Scales of the IVE, the BIS/BAS-Scales, the ZKPQ and the NEO-FFI. - The results reveal acceptable psychometric properties for the SSS V but with limitations with regard to factor structure. Indications for criterion validity were obtained by prediction of substance use by the subscales Dis and BS. The results of a MTMM analysis, especially the convergent validities of the SSS V were quite satisfying. On the whole, the results yielded sufficient support for the validity of the Sensation Seeking construct or the instrument respectively. They also point to desirable modifications.

The Stigma of Suicide Scale

Crisis ◽  
2013 ◽  
Vol 34 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Philip J. Batterham ◽  
Alison L. Calear ◽  
Helen Christensen
Keyword(s):  
Construct Validity ◽  
Psychometric Properties ◽  
Factor Structure ◽  
Internal Consistency ◽  
Concurrent Validity ◽  
Online Survey ◽  
National University ◽  
Stigmatizing Attitudes ◽  
High Internal Consistency ◽  
At Home

Background: There are presently no validated scales to adequately measure the stigma of suicide in the community. The Stigma of Suicide Scale (SOSS) is a new scale containing 58 descriptors of a “typical” person who completes suicide. Aims: To validate the SOSS as a tool for assessing stigma toward suicide, to examine the scale’s factor structure, and to assess correlates of stigmatizing attitudes. Method: In March 2010, 676 staff and students at the Australian National University completed the scale in an online survey. The construct validity of the SOSS was assessed by comparing its factors with factors extracted from the Suicide Opinion Questionnaire (SOQ). Results: Three factors were identified: stigma, isolation/depression, and glorification/normalization. Each factor had high internal consistency and strong concurrent validity with the Suicide Opinion Questionnaire. More than 25% of respondents agreed that people who suicided were “weak,” “reckless,” or “selfish.” Respondents who were female, who had a psychology degree, or who spoke only English at home were less stigmatizing. A 16-item version of the scale also demonstrated robust psychometric properties. Conclusions: The SOSS is the first attitudes scale designed to directly measure the stigma of suicide in the community. Results suggest that psychoeducation may successfully reduce stigma.

scholarly journals Contribution of the Cognitive Approach to Language Assessment to the Differential Diagnosis of Primary Progressive Aphasia

2021 ◽  
Vol 11 (6) ◽  
pp. 815
Author(s):  
Joël Macoir ◽  
Annie Légaré ◽  
Monica Lavoie
Keyword(s):  
Differential Diagnosis ◽  
Language Impairment ◽  
Primary Progressive Aphasia ◽  
Behavioral Management ◽  
Language Abilities ◽  
Cognitive Approach ◽  
Progressive Aphasia ◽  
Primary Progressive ◽  
Assessment Approach ◽  
Cognitive Neuropsychological

Diagnosis of primary progressive aphasia (PPA) is essentially based on the identification of progressive impairment of language abilities while other cognitive functions are preserved. The three variants of PPA are characterized by core and supportive clinical features related to the presence or absence of language impairment in different linguistic domains. In this article, we review the cognitive neuropsychological approach to the assessment of PPA and its contribution to the differential diagnosis of the three variants. The main advantage of this assessment approach is that it goes beyond the mere description and classification of clinical syndromes and identifies impaired and preserved cognitive and linguistic components and processes. The article is structured according to the main language domains: spoken production, language comprehension, and written language. Each section includes a brief description of the cognitive processes involved in the assessment tasks, followed by a discussion of typical characteristics for each PPA variant and common pitfalls in the interpretation of the results. In addition, the clinical benefit of the cognitive neuropsychological approach for the behavioral management of PPA is briefly sketched out in the conclusion.

The factor structure of the GHQ-60 in a community sample

1988 ◽  
Vol 18 (1) ◽  
pp. 211-218 ◽  
Author(s):  
J. L. Vazquez-Barquero ◽  
P. Williams ◽  
J. F. Diez-Manrique ◽  
J. Lequerica ◽  
A. Arenal
Keyword(s):  
Factor Structure ◽  
Principal Components ◽  
Good Description ◽  
Social Performance ◽  
Community Sample ◽  
General Health Questionnaire ◽  
Principal Component ◽  
Northern Spain ◽  
Relative Operating Characteristic ◽  
Component Structure

SynopsisThe factor structure of the 60-item version of the General Health Questionnaire was explored, using data collected in a community study in a rural area of northern Spain. Six principal components, similar to those previously reported with this instrument, were found to provide a good description of the data structure.The 30-item and 12-item versions of the GHQ were then disembedded from the parent version, and further principal components analyses carried out. Again, the results were similar to previous studies: in each of the three versions analysed here, the two most important components represented a disturbance of mood (‘general dysphoria’)– including aspects of anxiety, depression and irritability– and a disturbance of social performance (‘social function/optimism’).The principal component structure of the GHQ-60 was then utilized to calculate factor scores, and these were compared with PSE ratings using Relative Operating Characteristic (ROC) analysis. While four of the six factors discriminated well (area under the ROC curve 0–75 or more) between PSE ‘cases’ and ‘non-cases’, only one, depressive thoughts, was a good discriminator between depressed and non-depressed PSE ‘cases’.

Reliability, Validity, and Factor Structure of the Geriatric Depression Scale in Turkish Elderly: Are There Different Factor Structures for Different Cultures?

2000 ◽  
Vol 12 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Turan Ertan ◽  
Engin Eker
Keyword(s):  
Factor Structure ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Principal Component ◽  
Community Dwelling ◽  
Geriatric Depression ◽  
Reasonable Time ◽  
Positive Form

The purpose of this study was to examine the Geriatric Depression Scale (GDS) translated into Turkish for its reliability, discriminant validity, and factor structure in a sample of 276 community-dwelling elderly and 30 patients with major depression. One item (Item 5) was discovered to have conceptual difficulty for Turkish elderly and was transformed to negative form. Item 2 was transformed to positive form to keep the number of positive and negative items equal to that in the original GDS. A reasonable time stability with 1-week interval (r:.74) and a high level of internal consistency (α = .91) were observed. Student's t test resulted in a significant discriminant validity for the scale total score. Factor study with principal component analysis and varimax rotation gave rise to a structure with seven factors. Results of the same analysis with two factors were found to be easier to interpret. The first factor was composed of 19 items reflecting “depressive affect and thought content.” The other 11 items representing “decrease in motivation and cognitive functions” loaded in the second factor. In conclusion, the Turkish GDS was found to have reasonable time reliability, high internal consistency, and discriminant validity for Turkish elderly. Its two-factor structure can be used as an informative instrument for epidemiological studies, reflecting two main dimensions of depression in the elderly.

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