Good Concurrent Validity (good + concurrent_validity)

Distribution by Scientific Domains

Selected Abstracts

Developmental assessment of preterm infants at 2 years: validity of parent reports

Samantha Johnson PhD CPsychol
Parental questionnaires are inexpensive alternatives to standardized testing for outcome measurement. The Parent Report of Children's Abilities has previously been revised (PARCA-R) and validated for use with very-preterm infants at 2 years of age. This study revalidated the PARCA-R for assessing cognition in a larger and more inclusive sample of preterm infants. One hundred and sixty-four children (82 males, 82 females) of <32 weeks' gestation (median 29wks, interquartile range [IQR] 28-30wks); and median birthweight 1200g (IQR 925-1463g) were evaluated using the Mental Development Index (MDI) of the Bayley Scales of Infant Development - 2nd edition (BSID-II) at 2 years' corrected age. Parents completed the PARCA-R questionnaire. Significant correlations between PARCA-R Parent Report Composite (PRC) scores and MDI scores (r=0.77, 95% confidence interval [CI] 0.69-0.82, p<0.01) demonstrated concurrent validity. A receiver operating characteristic-determined PRC cut-off of <44 had optimal discriminatory power (area under curve 0.92) for identifying MDI <70, with 85% sensitivity (95% CI 0.58-0.96), 87% specificity (95% CI 0.81-0.92), 98% negative predictive value (95% CI 0.95-1), and 37% positive predictive value (95% CI 0.22-0.54). The PARCA-R has good concurrent validity and diagnostic utility for identifying cognitive delay in very-preterm infants at 2 years of age. It is useful for outcome measurement, developmental screening, and facilitating parental involvement at folow-up. [source]

Detecting language problems: accuracy of five language screening instruments in preschool children

H M E Van Agt MA
To identify a simple and effective screening instrument for language delays in 3-year-old children the reliability, validity, and accuracy of five screening instruments were examined. A postal questionnaire sent to parents of 11423 children included the Dutch version of the General Language Screen (GLS), the Van Wiechen (VW) items, the Language Screening Instrument for 3- to 4-year-olds, consisting of a parent form (LSI-PF) and a child test (LSI-CT), and parents' own judgement of their child's language development on a visual analogue scale (VAS). The response rate was 78% or 8877 children. Reliability (internal consistency) was found to be acceptable (,=0.67,0.72) for all instruments. Significant correlations between the screening instruments (r=0.29,0.55, p<0.01) indicated good concurrent validity. Accuracy was estimated by the sensitivity, specificity, and receiver operating characteristic (ROC) curves against two reference tests based on parent report and specialists' judgement. If the test would classify approximately 5% of the population as screen-positive, the mean sensitivity was 50%; assigning between 20% and 30% of the population as screen-positive, the mean sensitivity was 77%. The sensitivity was lowest for the LSI-CT (range 43,62%), whereas short instruments like the LSI-PF, VW, and the one-item VAS exhibited high levels of sensitivity (range 50,86%). The area under the ROC curves, ranged from 0.75 to 0.87. Apparently, short and simple parent report instruments like the LSI-PF and the one-item VAS perform remarkably well in detecting language delays in preschool children. [source]

Development of the Bipolar Inventory of Symptoms Scale: concurrent validity, discriminant validity and retest reliability

Jodi M. Gonzalez
Abstract Scales used in studies of bipolar disorder have generally been standardized with major depressive or hospitalized manic patients. A clinician rated scale based on a semi-structured interview for persons with bipolar disorder, with comprehensive coverage of bipolar symptomatology, is needed. We report concurrent, divergent and convergent psychometric reliability, discriminant validity and relationship to a measure of overall function for a new psychometric rating instrument. A primarily outpatient sample of 224 subjects was assessed using the Bipolar Inventory of Symptoms Scale (BISS). The BISS total score and depression and mania subscales were compared to the Young Mania Rating Scale (YMRS), the Montgomery Asberg Depression Rating Scale (MADRS) and the Global Assessment of Functioning Scale (GAF). Clinical mood states were also compared using the BISS. The BISS scores demonstrated good concurrent validity, with estimates (Pearson correlations) ranging from 0.74 to 0.94 for YMRS and MADRS and test,retest reliability from 0.95 to 0.98. BISS concurrent validity with the GAF was significant for four clinical states, but not mixed states. The BISS discriminated primary bipolar mood states as well as subjects recovered for eight weeks compared to healthy controls. In conclusion, the BISS is a reliable and valid instrument broadly applicable in clinical research to assess the comprehensive domains of bipolar disorder. Future directions include factor analysis and sensitivity to change from treatment studies. Copyright 2008 John Wiley & Sons, Ltd. [source]

Acceptability and psychometric properties of the Structured Clinical interview for Anorexic-Bulimic Spectrum (SCI-ABS)

Professor Dr M. Mauri
In this study we evaluated the psychometric properties of the Structured Clinical Interview for the Anorexic-Bulimic Spectrum (SCI-ABS), including internal consistency, concurrent validity, discriminant validity and test,retest reliability. We also determine acceptability and feasibility of administration of the interview. The SCI-ABS was designed to assess typical and atypical symptoms, behaviours and temperament traits pertaining to eating disorders. The interview included 134 items grouped into nine domains, four of which were divided into subdomains. Data were collected from 372 subjects: 55 psychiatric patients with any eating disorder according to DSM-IV criteria, 118 university students, 141 subjects working out in a gym, and 65 obstetrical patients. Concurrent validity of the instrument was assessed against the Eating Attitude Test (EAT) and the Eating Disorder Inventory (EDI). Thirty-five subjects were also recruited to study the test,retest reliability and 25 women with any eating disorder were administered both the self-report and the interview formats of the SCI-ABS. Internal consistency of domains and subdomains was good. Mean domain and subdomain scores were significantly higher in patients with eating disorders, supporting the discriminant validity of the instrument. Correlation with EAT and EDI indicated good concurrent validity. Test,retest reliability was excellent and the agreement between the interview and self-report formats was satisfactory. Copyright 2000 Whurr Publishers Ltd. [source]

The modified CAMDEX informant interview is a valid and reliable tool for use in the diagnosis of dementia in adults with Down's syndrome

S. L. Ball
Abstract Background Dementia because of Alzheimer's disease (AD) commonly affects older adults with Down's syndrome (DS). Methods are needed, with established concurrent and predictive validity, to facilitate the diagnostic assessment of dementia, when it is complicated by pre-existing intellectual disabilities (ID). We report on the reliability and validity of a modified version of the Cambridge Examination for Mental Disorders of the Elderly (CAMDEX) informant interview, for use when assessing people with DS suspected as having dementia. Methods As part of a previous epidemiological study of older people with DS, the CAMDEX informant interview was used to determine the prevalence of dementia. The 74 people with DS included at that time (Time 1) had also completed the Cambridge Cognitive Examination (CAMCOG), the neuropsychological assessment from the CAMDEX schedule. Fifty-six were assessed again 6 years later (Time 2). Based on the CAMDEX informant interview, nine of the 74 at Time 1, and 11 of the 56 at Time 2, were found to meet clinical criteria for AD. Forty-one scored above floor on the CAMCOG at Time 1 and were included in the analysis of cognitive decline. Concurrent validity was established by comparing diagnosis at Time 2 with independent evidence of objective decline on cognitive tasks since Time 1. Predictive validity was established by examining how accurately diagnosis at Time 1 predicted both cognitive decline and future diagnosis. Inter-rater reliability was determined by comparing the level of agreement between two raters. Results CAMDEX-based diagnosis of AD was shown to be consistent with objectively observed cognitive decline (good concurrent validity) and to be a good predictor of future diagnosis. Although numbers are small, some support is also provided for the accuracy with which diagnosis predicts cognitive decline. Inter-rater reliability was good with Kappa > 0.8 for 91% of items and >,0.6 for all items. Conclusions The use of the modified CAMDEX informant interview enables the structured collection of diagnostic information, so that a valid and a reliable diagnosis of dementia can be made in those with pre-existing ID, using established diagnostic criteria. [source]

Developmental evaluation at age 4: Validity of an Italian parental questionnaire

Anna Maria Dall'Oglio
Aim: To validate an Italian parental questionnaire designed to evaluate the neuropsychological and behavioural developmental status of 4-year-olds and identify children in need of further evaluation. Methods: The questionnaire (Questionario per la valutazione dello Sviluppo di bambini a 4 anni , Genitori (QS4-G) ) consisted of 93 questions divided into 10 areas: language, visual-motor abilities, memory/attention, fine and gross motor and self-help abilities, lateralisation, social skills, stress, sleep, alimentation and evacuation. It was distributed to 263 parents of 4-year-olds: 94 healthy preterm (gestational age <33 weeks and/or <1500 g, without major neurosensory damage); 44 children with developmental disorders and 125 children with typical development. Cognitive and neuropsychological evaluations were performed using standardised tests. Results: The internal consistency of the areas was adequate (Cronbach's alpha: 0.69,0.79). The correlation coefficients (r=|0.30|,|0.68|) with standardised tests (Griffiths, Vineland and neuropsychological tests) indicated a good concurrent validity. The receiver operating characteristic curve, for predicting a Griffiths Quotient less than 81, showed an area under the curve of 0.90 and a high diagnostic and discriminatory capacity (sensitivity of 0.88 and specificity of 0.84) for the optimal cut-off (value 48.4). Conclusion: The QS4-G seems to be a valid tool for identifying 4-year-old children at risk for low or borderline cognitive development and/or problematic behaviour who need a complete assessment. It can describe individual neuropsychological profiles. QS4-G is not a diagnostic tool. It is useful for outcome studies in preterm children and in other pathologies. It could also be useful for preschooler prevention programmes. [source]

The perceived expressed emotion in staff scale

Recent research has highlighted the role of expressed emotion by ward staff in determining the well-being of psychiatric inpatients. Existing methods of assessing staff expressed emotion involve standardized interviews and are expensive and time-consuming. We report the development of a questionnaire measure of expressed emotion in staff as perceived by patients. In study 1, factor analysis of items administered to patients in a variety of settings led to the development of a questionnaire with three subscales: supportiveness, criticism and intrusiveness. In study 2, the test,retest reliability of the questionnaire was found to be adequate, and some evidence of concurrent validity for the scale was obtained against expressed emotion rated from staff speech samples. In study 3, the scale was shown to have good concurrent validity against the ward atmosphere scale, and scores were found to be independent of insight or experience of admission to hospital. The perceived expressed emotion in staff scale is a convenient measure, which may have utility for both research and clinical purposes. [source]

Psychometric Properties of the Short Index of Problems as a Measure of Recent Alcohol-Related Problems

ALCOHOLISM, Issue 9 2003
Richard Feinn
Background: The Drinker Inventory of Consequences (DrInC) measures overall consequences of drinking and yields five subscale scores. A short form of the DrInC, the Short Index of Problems (SIP), was developed for use when time does not permit completion of the DrInC. This study investigates the psychometric properties of the SIP. Methods: The study sample consisted of 153 problem drinkers who were participants in a placebo-controlled trial of naltrexone and brief counseling. Results: The SIP showed good internal consistency, good concurrent validity, and adequate stability. Four of the five SIP subscales contributed unique variance beyond general drinking consequences. Conclusions: The SIP is useful for measuring drinking consequences in a sample of problem drinkers, and the subscale scores can be interpreted clinically. Further research on the SIP in other populations is warranted. [source]

Validation of a questionnaire (CARAT10) to assess rhinitis and asthma in patients with asthma

ALLERGY, Issue 8 2010
J. A. Fonseca
To cite this article: Fonseca JA, Nogueira-Silva L, Morais-Almeida M, Azevedo L, Sa-Sousa A, Branco-Ferreira M, Fernandes L, Bousquet J. Validation of a questionnaire (CARAT10) to assess rhinitis and asthma in patients with asthma. Allergy 2010; 65: 1042,1048. Abstract Background and aim:, The Control of Allergic Rhinitis and Asthma Test (CARAT) was developed to be used in the concurrent management of these diseases, as recommended by the Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines. However, it was necessary to statistically identify and remove redundant questions and to evaluate the new version's factor structure, internal consistency and concurrent validity. Methods:, In this cross-sectional study 193 adults with allergic rhinitis and asthma from 15 outpatient clinics in Portugal were included. The CARAT questionnaire was reduced using descriptive analysis, exploratory factor analysis and internal consistency. Spearman's correlations were used to compare the CARAT scores with a medical evaluation and other measures of control, including the Asthma Control Questionnaire and symptoms' visual analogue scales. The performance against physician rating of control was summarized using the area under the curve (AUC) from receiver operating characteristic analysis. In addition, CARAT was compared with the physician's decision to reduce, maintain or increase treatment. Results:, The reduced version has 10 questions and 2 factors (CARAT10). The Cronbach's alpha was 0.85. All correlation coefficients of CARAT10 and factors with the different measures of control met the a priori predictions, ranging from 0.58 to 0.79. The AUC was 0.82. For the physician's decision groups of reduce, maintain or increase treatment, the mean (IC95%) scores of CARAT10 were 24 (21.4;26.6), 21 (19.4;21.9) and 15 (13.6;16.5), respectively. Conclusion:, CARAT10 has high internal consistency and good concurrent validity, making it useful to compare groups in clinical studies. [source]