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Discriminative Validity (discriminative + validity)
Selected AbstractsValidation of the World Health Organization Alcohol, Smoking and Substance Involvement Screening Test (ASSIST): report of results from the Australian siteDRUG AND ALCOHOL REVIEW, Issue 3 2005DAVID A. L. NEWCOMBE Abstract The concurrent, construct, discriminative and predictive validity of the World Health Organization's Alcohol Substance Involvement Screening Test (ASSIST) were examined in an Australian sample. One hundred and fifty participants, recruited from drug treatment (n = 50) and primary health care (PHC) settings (n = 100), were administered a battery of instruments at baseline and a modified battery at 3 months. Measures included the ASSIST; the Addiction Severity Index-Lite (ASI-Lite); the Severity of Dependence Scale (SDS); the MINI International Neuropsychiatric Interview (MINI-Plus); the Rating of Injection Site Condition (RISC); the Drug Abuse Screening Test (DAST); the Alcohol Use Disorders Identification Test (AUDIT); the Revised Fagerstrom Tolerance Questionnaire (RTQ); and the Maudsely Addiction Profile (MAP). Concurrent validity was demonstrated by significant correlations between ASSIST scores and scores from the ASI-lite, SDS, AUDIT and DAST; and significantly greater ASSIST scores for those with diagnoses of abuse or dependence. Construct validity was established by significant correlations between ASSIST scores and measures of risk factors for the development of drug and alcohol problems. Participants diagnosed with attention deficit/hyperactivity disorder or antisocial personality disorder had significantly higher ASSIST scores than those not diagnosed as such. Discriminative validity was established by the capacity of the ASSIST to discriminate between substance use, abuse and dependence. ROC analysis was able to establish cut-off scores for an Australian sample, with suitable specificities and sensitivities for most substances. Predictive validity was demonstrated by similarity in ASSIST scores obtained at baseline and at follow-up. The findings demonstrated that the ASSIST is a valid screening test for psychoactive substance use in individuals who use a number of substances and have varying degrees of substance use. [source] Validation of the alcohol, smoking and substance involvement screening test (ASSIST)ADDICTION, Issue 6 2008Rachel Humeniuk ABSTRACT Aim The concurrent, construct and discriminative validity of the World Health Organization's Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) were examined in a multi-site international study. Participants One thousand and 47 participants, recruited from drug treatment (n = 350) and primary health care (PHC) settings (n = 697), were administered a battery of instruments. Measurements Measures included the ASSIST; the Addiction Severity Index-Lite (ASI-Lite); the Severity of Dependence Scale (SDS); the MINI International Neuropsychiatric Interview (MINI-Plus); the Rating of Injection Site Condition (RISC); the Drug Abuse Screening Test (DAST); the Alcohol Use Disorders Identification Test (AUDIT); the Revised Fagerstrom Tolerance Questionnaire (RTQ); and the Maudsley Addiction Profile (MAP). Findings Concurrent validity was demonstrated by significant correlations between ASSIST scores and scores from the ASI-Lite (r = 0.76,0.88), SDS (r = 0.59), AUDIT (r = 0.82) and RTQ (r = 0.78); and significantly greater ASSIST scores for those with MINI-Plus diagnoses of abuse or dependence (P < 0.001). Construct validity was established by significant correlations between ASSIST scores and measures of risk factors for the development of drug and alcohol problems (r = 0.48,0.76). Discriminative validity was established by the capacity of the ASSIST to discriminate between substance use, abuse and dependence. Receiver operating characteristic (ROC) analysis was used to establish cut-off scores with suitable specificities (50,96%) and sensitivities (54,97%) for most substances. Conclusions The findings demonstrated that the ASSIST is a valid screening test for identifying psychoactive substance use in individuals who use a number of substances and have varying degrees of substance use. [source] Development and Validation of Quality Indicators for Dementia Diagnosis and Management in a Primary Care SettingJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 3 2010Marieke Perry MD OBJECTIVES: To construct a set of quality indicators (QIs) for dementia diagnosis and management in a primary care setting. DESIGN: RAND modified Delphi method, including a postal survey, a stakeholders consensus meeting, a scientific expert consensus meeting, and a demonstration project. SETTING: Primary care. PARTICIPANTS: General practitioners (GPs), primary care nurses (PCNs), and informal caregivers (ICs) in postal survey and stakeholders consensus meeting. Eight national dementia experts in scientific consensus meeting. Thirteen GPs in the demonstration project. MEASUREMENTS: Mean face validity and feasibility scores. Compliance rates using GPs' electronic medical record data. RESULTS: The initial set consisted of 31 QIs. Most indicators showed moderate or good face validity and feasibility scores. Consensus panels reduced the preliminary set used in the demonstration project to 24 QIs. The overall compliance to the QIs was 45.3%. Discriminative validity of the set was good; significant differences in adherence were found between GPs with high and low levels of patients aged 65 and older in their practice, with and without PCNs, and with positive and negative attitudes toward dementia (all P<.05). Based on the demonstration project, one QI was excluded. The final set consisted of 23 QIs; 15 QIs contained innovative quality criteria on collaboration between GPs and PCNs, referral criteria, and assessment of caregivers' needs. CONCLUSION: This new set of dementia QIs is feasible, reliable, and valid and can be used to improve primary dementia care. Because of the innovative quality criteria, the set is complementary to the existing dementia QIs. [source] Discriminative validity of the behavior assessment system for children-parent rating scales in children with recurrent abdominal pain and matched controlsPSYCHOLOGY IN THE SCHOOLS, Issue 2 2003PAUL M. ROBINS Examined discriminative validity of the Parent Rating Scale (PRS) of the Behavior Assessment System for Children (BASC; Reynolds & Kamphaus, 1992, Circle Pines, MN: American Guidance Services). Two groups were compared: a cohort with recurrent abdominal pain (RAP) (n= 49) and children from the BASC-PRS standardization sample (n = 49) matched on the background characteristics of age, race/ethnicity, and gender. A multivariate, two-group discriminant function analysis was used to compare groups across standard scores from the nine clinical scales of the PRS. Results demonstrated that children with RAP could be differentiated (Wilks , = .642, F = 6.45, df (9, 88), p < .001), and demonstrated higher scores on the Somatization, Depression, Anxiety, Attention Problems, and Withdrawal scales. Subsequent jackknifed classification analysis, diagnostic efficiency statistics, and an odds ratio for the classification analysis added to the overall validity of results. The practical utility of the BASC-PRS is further supported in light of expanding roles for school psychologists in the assessment and treatment of children with health problems. © 2003 Wiley Periodicals, Inc. Psychol Schs 40: 145,154, 2003. [source] Valid electrodermal hyporeactivity for depressive suicidal propensity offers links to cognitive theoryACTA PSYCHIATRICA SCANDINAVICA, Issue 5 2009L.-H. Thorell Objective:, Studies from three independent laboratories report varying relationships between electrodermal hyporeactivity and suicidal behavior in depressed patients. The aims of this study were to explain that variation, to assess the discriminative validity of electrodermal hyporeactivity for suicide and suicide attempts and to suggest a tentative explanation model. Method:, A meta-analysis was performed of 279 depressed patients and 59 healthy subjects. Results:, The sensitivity was 96.6% and specificity 92.9% of electrodermal hyporeactivity for suicide and 83.3% and 92.7%, respectively, for suicide and/or violent attempts. The shares of hyporeactives were strongly significantly and greatly larger in high than in low suicidal propensity groups, P- value ranging from 4.7 × 10,8 to 1.1 × 10,14. Conclusion:, The high discriminative validity and the emerging links over a proposed interest-limiting precognitive set to cognitive theory of suicide encourage clinical application of tests of electrodermal reactivity. The study offers a series of testable hypotheses constituting a new platform for suicidological research in depression. [source] Validation of the alcohol, smoking and substance involvement screening test (ASSIST)ADDICTION, Issue 6 2008Rachel Humeniuk ABSTRACT Aim The concurrent, construct and discriminative validity of the World Health Organization's Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) were examined in a multi-site international study. Participants One thousand and 47 participants, recruited from drug treatment (n = 350) and primary health care (PHC) settings (n = 697), were administered a battery of instruments. Measurements Measures included the ASSIST; the Addiction Severity Index-Lite (ASI-Lite); the Severity of Dependence Scale (SDS); the MINI International Neuropsychiatric Interview (MINI-Plus); the Rating of Injection Site Condition (RISC); the Drug Abuse Screening Test (DAST); the Alcohol Use Disorders Identification Test (AUDIT); the Revised Fagerstrom Tolerance Questionnaire (RTQ); and the Maudsley Addiction Profile (MAP). Findings Concurrent validity was demonstrated by significant correlations between ASSIST scores and scores from the ASI-Lite (r = 0.76,0.88), SDS (r = 0.59), AUDIT (r = 0.82) and RTQ (r = 0.78); and significantly greater ASSIST scores for those with MINI-Plus diagnoses of abuse or dependence (P < 0.001). Construct validity was established by significant correlations between ASSIST scores and measures of risk factors for the development of drug and alcohol problems (r = 0.48,0.76). Discriminative validity was established by the capacity of the ASSIST to discriminate between substance use, abuse and dependence. Receiver operating characteristic (ROC) analysis was used to establish cut-off scores with suitable specificities (50,96%) and sensitivities (54,97%) for most substances. Conclusions The findings demonstrated that the ASSIST is a valid screening test for identifying psychoactive substance use in individuals who use a number of substances and have varying degrees of substance use. [source] Resilience in relation to personality and intelligenceINTERNATIONAL JOURNAL OF METHODS IN PSYCHIATRIC RESEARCH, Issue 1 2005Oddgeir Friborg Abstract Resilience is a construct of increasing interest, but validated scales measuring resilience factors among adults are scarce. Here, a scale named the Resilience Scale for Adults (RSA) was crossvalidated and compared with measures of personality (Big Five/5PFs), cognitive abilities (Raven's Advanced Matrices, Vocabulary, Number series), and social intelligence (TSIS). All measures were given to 482 applicants for the military college. Confirmatory factor analyses confirmed the fit of the five-factor model, measuring ,personal strength', ,social competence', ,structured style', ,family cohesion' and ,social resources'. Using Big Five to discriminate between well adjusted and more vulnerable personality profiles, all resilience factors were positively correlated with the well adjusted personality profile. RSA-personal strength was most associated with 5PFs-emotional stability, RSA-social competence with 5PFs-extroversion and 5PFs-agreeableness, as well as TSIS-social skills, RSA-structured style with 5PFs-conscientiousness. Unexpectedly but interestingly, measures of RSA-family cohesion and RSA-social resources were also related to personality. Furthermore, the RSA was unrelated to cognitive abilities. This study supported the convergent and discriminative validity of the scale, and thus the inference that individuals scoring high on this scale are psychologically healthier, better adjusted, and thus more resilient. Copyright © 2005 Whurr Publishers Ltd. [source] The Existential Loneliness Questionnaire: Background, development, and preliminary findingsJOURNAL OF CLINICAL PSYCHOLOGY, Issue 9 2002Aviva M. Mayers We described the background and the development of a new measure of existential loneliness, the Existential Loneliness Questionnaire (ELQ). Specifically, we analyzed the items of the preliminary version of the ELQ (ELQ-P) using methods based on item response theory (the Rasch model) and examined the convergent and discriminative validity of the ELQ in a sample of 47 HIV-infected women. Item analysis produced an ELQ version consisting of 22 items that were internally consistent and performed well in measuring an underlying construct conceptualized as existential loneliness. In addition, the ELQ discriminated well between symptomatic and asymptomatic HIV-infected women. The ELQ correlated strongly with measures of depression, loneliness not identified as existential and purpose-in-life and moderately strongly with a measure of hopelessness. Holding constant depression scores, the correlation between the ELQ and loneliness not identified as existential was significantly attenuated. Limitations of the study include the small sample size, which precluded an analysis of the dimensional structure of the ELQ. © 2002 Wiley Periodicals, Inc. J Clin Psychol 58: 1183,1193, 2002. [source] Assessing fear of falling: Can a short version of the Activities-specific Balance Confidence scale be useful?MOVEMENT DISORDERS, Issue 12 2006Chava Peretz PhD Abstract We present the process of further validation of the 16-item Activities-specific Balance Confidence scale (ABC-16) and a short version (ABC-6) derived by us, to assess balance confidence and fear of falling (FOF). The ABC-16 was administrated to three groups who were anticipated to have a range of balance confidence: 70 patients with higher level gait disorders (HLGDs), 68 healthy controls, and 19 patients with Parkinson's disease (PD). Item reduction was based on identifying items with the lowest scores (high FOF) among the patients. Internal consistency and discriminative validity were assessed using Cronbach's alpha and logistic regression, respectively. The intraclass correlation (ICC) between the short and long versions was assessed using a mixed model approach, accounting for the difference between the scores of the two versions. Six items were found to reflect the most frightening conditions, especially in the patient groups, and to form the short version (ABC-6). Internal consistency of the ABC-16 and ABC-6 were high in the three groups: Cronbach's alpha was between 0.83 and 0.91 and 0.81 and 0.90, respectively. Compared to the control group, the sensitivity of the ABC-16 was 96% for identification of patients with HLGDs (greatest FOF) and 58% for identification of PDs (moderate FOF), based only on the ABC scores. Similar values were obtained for the short version, i.e., 91% for HLGDs and 53% for PDs. ICCs between the short and the long versions was 0.88 (HLGDs), 0.83 (PDs), and 0.78 (Controls). To conclude, the short version of the ABC has properties analogous to the parent questionnaire and is apparently useful in assessing FOF. © 2006 Movement Disorder Society [source] Discriminative validity of the behavior assessment system for children-parent rating scales in children with recurrent abdominal pain and matched controlsPSYCHOLOGY IN THE SCHOOLS, Issue 2 2003PAUL M. ROBINS Examined discriminative validity of the Parent Rating Scale (PRS) of the Behavior Assessment System for Children (BASC; Reynolds & Kamphaus, 1992, Circle Pines, MN: American Guidance Services). Two groups were compared: a cohort with recurrent abdominal pain (RAP) (n= 49) and children from the BASC-PRS standardization sample (n = 49) matched on the background characteristics of age, race/ethnicity, and gender. A multivariate, two-group discriminant function analysis was used to compare groups across standard scores from the nine clinical scales of the PRS. Results demonstrated that children with RAP could be differentiated (Wilks , = .642, F = 6.45, df (9, 88), p < .001), and demonstrated higher scores on the Somatization, Depression, Anxiety, Attention Problems, and Withdrawal scales. Subsequent jackknifed classification analysis, diagnostic efficiency statistics, and an odds ratio for the classification analysis added to the overall validity of results. The practical utility of the BASC-PRS is further supported in light of expanding roles for school psychologists in the assessment and treatment of children with health problems. © 2003 Wiley Periodicals, Inc. Psychol Schs 40: 145,154, 2003. [source] ORIGINAL RESEARCH,OUTCOMES ASSESSMENT: Validation of the Female Sexual Distress Scale-Revised for Assessing Distress in Women with Hypoactive Sexual Desire DisorderTHE JOURNAL OF SEXUAL MEDICINE, Issue 2 2008Leonard DeRogatis PhD ABSTRACT Introduction., The concept of sexually related personal distress is currently central to the diagnosis of all female sexual dysfunctions (FSD). In the current study, we have focused on validating a slightly revised version of the Female Sexual Distress Scale (FSDS), the FSDS-Revised (FSDS-R), to enhance the sensitivity of the instrument with patients suffering from hypoactive sexual desire disorder (HSDD). In addition, we have attempted to extend the validation generalizability of the scale by demonstrating that both instruments possess reliability and discriminative validity in premenopausal women with HSDD. Aim., To assess the validity of the revised version of the FSDS, the FSDS-R, for measuring sexual distress in women with HSDD. Methods., A prospective methodological study carried out at 27 centers in North America enrolled 296 women aged 18,50 years with HSDD, another female sexual dysfunction (FSD), or no FSD. The subjects completed the FSDS-R at baseline, day 7, and day 28, with a 30-day recall at baseline and with a 7-day recall on days 7 and 28. Main Outcome Measures., Receiver operating characteristic (ROC) analyses of FSDS, FSDS-R, and FSDS-R item 13 were used for the differentiation of HSDD from no FSD, while intraclass correlation coefficient (ICC) was used to estimate test,retest reliability. Cronbach's coefficient alpha was used to measure the internal consistency of the FSDS-R and Pearson's correlation coefficient to assess FSDS, FSDS-R, and FSDS-R item 13 with different recall periods (7 and 30 days). Results., Mean total FSDS, FSDS-R, and FSDS-R item 13 scores with either recall period were significantly higher (P < 0.0001) in women with FSD or HSDD than in women with no FSD, showing both tests had discriminant validity. ROC analysis confirmed these findings, while an ICC of >0.74 showed the test,retest reliability of both scales, including FSDS-R item 13 alone, and Cronbach's coefficient alpha of >0.86 confirmed the internal consistency of both tests. Conclusions., Consistent with the FSDS, the FSDS-R demonstrated good discriminant validity, high test,retest reliability, and a high degree of internal consistency in measuring sexually related personal distress in women with HSDD. FSDS-R item 13 alone also demonstrated good discriminant validity and test,retest reliability. DeRogatis L, Clayton A, Lewis-D'Agostino D, Wunderlich G, and Fu Y. Validation of the female sexual distress scale revised for assessing distress in women with hypoactive sexual desire disorder. J Sex Med 2008;5:357,364. [source] Reliability and validity of the Childhood Cancer Survivor Study Neurocognitive QuestionnaireCANCER, Issue 8 2008Kevin R. Krull PhD Abstract BACKGROUND. Up to 40% of childhood cancer survivors may experience neurocognitive impairment in 1 or more specific domains. As such, regular monitoring has been recommended for patients exposed to cranial irradiation and/or antimetabolite chemotherapy. This study reports the results of a questionnaire developed to identify those survivors who may be experiencing neurocognitive problems. METHODS. Participants for this study were 7121 members of the Childhood Cancer Survivor Study cohort (6739 survivors and 382 siblings). These participants completed a new neurocognitive questionnaire designed to assess functions commonly affected by cancer therapy, as well as a standard measure of emotional functioning. A measure of cognitive and emotional functioning was also completed on a subset of the patients roughly 7 years before the current questionnaire. Responses to the questionnaires among subgroups of survivors were then analyzed to examine the reliability and validity of the new neurocognitive questionnaire. RESULTS. Four reliable factors were identified that assessed task efficiency, emotional regulation, organization, and memory skills. These neurocognitive factors accurately discriminated survivors who were at "high risk" for neurocognitive dysfunction, because of neurologic abnormalities or a history of intensive focal cranial irradiation, from healthy "low-risk" survivors and siblings. CONCLUSIONS. The questionnaire demonstrated excellent reliability, as well as construct and discriminative validity. It appears to be a practical and efficient tool for monitoring neurocognitive outcomes in adult survivors of pediatric cancer. Cancer 2008. © 2008 American Cancer Society. [source] |