Objective To test psychometrics of the Short Form 36 Health Survey version 2 (SF-36v2) and the Quality of Life Scale for Drug Addicts (QOL-DAv2.0) in Chinese mainland patients with methadone maintenance treatment (MMT). Methods A total of 1,212 patients were recruited from two MMT clinics in Xian, China. Reliability was estimated with Cronbachs α and intra-class correlation (ICC). Convergent and discriminant validity was assessed using multitrait-multimethod correlation matrix. Sensitivity was measured with ANOVA and relative efficiency. Responsiveness was evaluated by pre-post paired-samples t-test and standardized response mean based on the patients health status changes following 6-month period. Results Cronbachs α of the SF-36v2 physical and mental summary components were 0.80 and 0.86 (eight scales range 0.73-0.92) and the QOL-DAv2.0 was 0.96 (four scales range: 0.80-0.93). ICC of the SF-36v2 two components were 0.86 and 0.85 (eight scales range: 0.72-0.87) and the QOL-DAv2.0 was 0.94 (four
Evidence-based assessment of the psychometric properties of available paediatric sleep instruments is needed (Lewandowski et al., 2011; Spruyt and Gozal, 2011). The current study examined the factor structure, internal consistency reliability and concurrent validity of the ASHS using a community-based urban sample of 16-19-year-old adolescents. The empirical factor structure of the revised 24-item scale (ASHSr) is largely consistent with the theoretically based structure proposed initially (LeBourgeois et al., 2005), with the exceptions that the cognitive and emotional domains were combined into one factor and a new behavioural arousal construct was identified. Internal consistency reliability of the ASHSr as well as concurrent validity with objective measures of sleep and convergent validity with behavioural outcomes indicate that the ASHSr has satisfactory psychometric properties for a research instrument to assess adolescent sleep hygiene.. Sleep hygiene was correlated modestly with objective ...
Results: Rasch analysis was used to refine the SPaRQ. The result was a 19-item measure divided into two subscales. The 9-item Social Behaviors subscale measured difficulties with performing actions in a social context due to hearing loss. The 10-item Social Perceptions subscale measured negative thoughts and feelings experienced in a social context due to hearing loss. Both Rasch analysis and the traditional psychometric analysis techniques demonstrated that each subscale had strong psychometric properties. In particular, each subscale passed the test of unidimensionality, displayed good fit to the Rasch model, and had high internal consistency. In addition, it was found that, as predicted, each subscale had strong, positive correlations with the hearing-specific questionnaire and moderate, positive correlations with the generic health and disability questionnaire and the depression and anxiety screening questionnaire. Taken together, these findings support the construct validity of the 19-item ...
I just finished reading some recent articles from Denny Borsboom. Two of them deal with diagnostic and the international classification of diseases from a measurement and conceptual perspectives. These are actually really excellent papers as they bring psychometrics in the field of health measurement and diagnostic.. ...
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This study investigated psychometric properties of an instrument for assessing perceived occupational value, the 26-item OVal-pd. Data from 225 Swedish subjects with and without known mental illness were analysed regarding fit to the Rasch measurement model (partial credit model), differential item functioning (DIF), and functioning of the OVal-pd four-category response scale. The reliability (index of person separation, analogous to Cronbachs alpha) was good (0.92) but there were signs of overall and item level (six items) misfit. There was DIF between people with and without mental illness for three items. Iterative deletion of misfitting items resulted in a new 18-item DIF-free scale with good overall and individual item fit and maintained reliability (0.91). There were no disordered response category thresholds. These observations also held true in separate analyses among people with and without mental illness. Thus, the first steps of ensuring that occupational value can be measured in a ...
Key concepts in classical test theory are reliability and validity. A reliable measure is one that measures a construct consistently across time, individuals, and situations. A valid measure is one that measures what it is intended to measure. Reliability is necessary, but not sufficient, for validity. Both reliability and validity can be assessed statistically. Consistency over repeated measures of the same test can be assessed with the Pearson correlation coefficient, and is often called test-retest reliability.[14] Similarly, the equivalence of different versions of the same measure can be indexed by a Pearson correlation, and is called equivalent forms reliability or a similar term.[14] Internal consistency, which addresses the homogeneity of a single test form, may be assessed by correlating performance on two halves of a test, which is termed split-half reliability; the value of this Pearson product-moment correlation coefficient for two half-tests is adjusted with the Spearman-Brown ...
Procedures for Estimating Internal Consistency Reliability Prepared by the Iowa Technical Adequacy Project (ITAP) July, 003 Table of Contents: Part Page Introduction...1 Description of Coefficient Alpha...3
This large national survey of patients with RA or axSpA generated two principal results. First, almost one-fifth (17.2%) of evaluated patients had high fear scores, despite both diseases being typically well managed, and these scores were associated with psychological distress. Thus, the fears identified in this study may reflect psychological distress, and need to be addressed even in patients who have moderate to low disease activity. Second, we have developed the FAIR questionnaire: a disease-specific, psychometrically validated PRO to measure disease and treatment-related fears in patients with RA or axSpA. This instrument demonstrated acceptable psychometric properties: notably unidimensionality, high internal coherence, good discriminant validity and adequate test-retest stability. The FAIR is short (10 items), simple to score and may be a useful tool both in routine practice and clinical trials.. The strengths of this study include the size of the study population, the high level of ...
Using emerging international guidelines, stringent procedures were used to develop and evaluate Canadian-French, German and UK translations/adaptions of the 50 item, parent-completed Child Health Questionnaire (CHQ-PF50). Multitrait analysis was used to evaluate the convergent and discriminant validity of the hypothesized item sets across countries relative to the results obtained for a representative sample of children in the US. Cronbachs alpha coefficient was used to estimate the internal consistency reliability for each of the health scales. Floor and ceiling effects were also examined. Seventy-nine percent of all the item-scale correlations achieved acceptable internal consistency (0.40 or higher). The tests of the item convergent and discriminant validity were successful at least 87% of the time across all scales and countries. Equal item variance was observed 90% of the time across all countries. The reliability coefficients ranged from a low of 0.43 (parental time impact, Canadian English) to a
Item response theory (IRT) is a popular approach used for addressing statistical problems in psychometrics as well as in other fields. The fully Bayesian approach for estimating IRT models is computationally expensive. This limits the use of the procedure in real applications. In an effort to reduce the execution time, a previous study shows that high performance computing provides a solution by achieving a considerable speedup via the use of multiple processors. Given the high data dependencies in a single Markov chain for IRT models, it is not possible to avoid communication overhead among processors. This study is to reduce communication overhead via the use of a row-wise decomposition scheme. The results suggest that the proposed approach increased the speedup and the efficiency for each implementation while minimizing the cost and the total overhead. This further sheds light on developing high performance Gibbs samplers for more complicated IRT models.
Psychometric Tests - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Psychometric Tests
Reviews the book, Psychometrics and Psychology by Paul Kline (1979). The author believes that human variation should be studied by analyzing data from psychometric tests usually written multiple-choice tests. Test validity is to be established by the factor structure of tests batteries. Tests are thus validated by their correlation with other tests. Criterion-referenced evaluations, such as studies of contrasts between the scores of reference groups, are seen as suspect. Criterion-referenced tests may provide a description, but because of factor impurity, criterion-referenced tests are not valid scientific instruments. Experimental studies of cognition and personality may complement information gathered from psychometric investigations, but because of their necessarily small sample sizes, such studies are to be regarded as secondary psychometrics. Having thus set the ground rules, Kline presents a cursory discussion of standard test theory. The brevity is unfortunate, because undefined terms ...
The following minimal set of valid health domains for tracking the health of both clinical and general populations has recently been proposed: 1) energy and drive functions, 2) emotional functions, 3) sensation of pain, 4) carrying out daily routine, 5) walking and moving around, and 6) remunerative employment. This study investigates whether these domains can be integrated into a sound psychometric measure to adequately assess, compare, and monitor the health of populations. Data from waves 3 and 4 of the English Longitudinal Study of Ageing (ELSA) were analysed (N = 9779 and 11,050). From ELSA, 12 items operationalizing the six domains of the minimal generic set were identified. The Partial Credit Model (PCM) was applied to create a health metric based on these items. The Item Response Theory (IRT) model assumptions of unidimensionality, local independence, and monotonicity were evaluated, and Differential Item Functioning (DIF) was examined for sex and age groups. The psychometric properties of: 1)
painDETECT (PD-Q) is a self-reported assessment of pain qualities developed as a screening tool for pain of neuropathic origin. Rasch analysis is a strategy for examining the measurement characteristics of a scale using a form of item response theory. We conducted a Rasch analysis to consider if the scoring and measurement properties of PD-Q would support its use as an outcome measure. Rasch analysis was conducted on PD-Q scores drawn from a cross-sectional study of the burden and costs of NeP. The analysis followed an iterative process based on recommendations in the literature, including examination of sequential scoring categories, unidimensionality, reliability and differential item function. Data from 624 persons with a diagnosis of painful diabetic polyneuropathy, small fibre neuropathy, and neuropathic pain associated with chronic low back pain, spinal cord injury, HIV-related pain, or chronic post-surgical pain was used for this analysis. PD-Q demonstrated fit to the Rasch model after
Lori McLeod, PhD, is Head of Psychometrics and Executive Director, Patient-Centered Outcomes Assessment at RTI Health Solutions. Dr. McLeod is a psychometrician with more than 20 years of measurement experience, including expertise in instrument development and validation, as well as experience developing appropriate health outcome strategies. In her Psychometrics role, she has conducted many psychometric evaluations of both paper-and-pencil and computer-administered instruments. These investigations have included the assessment of scale reliability, validity, responsiveness, and work to identify PRO responders. In addition, Dr. McLeod has experience conducting and analyzing data from clinical trials and observational studies, including data to document burden of disease and treatment benefit. Dr. McLeod has published numerous related manuscripts in Quality of Life Research, Value in Health, Pharmacoeconomics, Mayo Clinic Proceedings, and Psychometrika. She has experience in a wide variety of ...
This study examined the psychometric properties of the eight-item Physical Activity Enjoyment Scale (PACES) in Hong Kong older adults. Study 1 assessed the scales factor validity and test-retest reliability, whereas Study 2 examined its convergent validity in Hong Kong older adults. A total of 168 (Study 1) older adults completed the PACES twice over a 2-week interval, and 57 (Study 2) older adults completed both the eight-item PACES and a measure of quality of life. The results of both studies showed that the eight-item PACES had a high degree of internal consistency. Both the composite reliability and average variance extracted from Study 1 were high, suggesting that as a set, the eight items of the PACES reliably measured the construct. The observed test-retest reliability was satisfactory over a 2-week interval. This eight-item PACES is an expedited and reliable instrument for assessing physical activity enjoyment in Chinese older adults. ...
Results: Findings from the exploratory factor analysis of the MLHFQ revealed three factors (physical, emotional and social) that explained 72 % of the total variance. Mokken analysis confirmed the MLHFQ total scale, and the three subscales, as valid ordinal scales: the total MLHFQ scale [overall Loevinger coefficient (H) = 0.61], physical scale (H = 0.75), emotional scale (H = 0.79) and social scale (H = 0.552). Rasch analysis confirmed the physical scale as a unidimensional scale, but this was not consistent for the total MLHFQ scale which showed poor fit to the Rasch model (χ 2 = 162), df = 42, p , 0.0001). Six items of the total scale were misfitting (7, 8, 10, 14-16) and removing them improved the fit of the total scale. The physical subscale showed fit to the Rasch model (χ 2 = 20.24, df = 16, p = 0.21), and there was evidence of unidimensionality (t tests = 0.09, lower bound 95 % CI 0.04). There was evidence of disordered thresholds for the MLHFQ total and physical scale, and targeting ...
This thesis compromise four studies, three regarding psychometrics and norms of parent rating scales, and one study regarding effectiveness of two different interventions. A normative sample consisting of 1443 parents with children aged 10 to 13 years old, was used in the Study I, II and III. In Study IV, 231 self-referred parents with children aged 10-13 years old with externalizing behavior problem (EBP) were randomized to either Family Check-Up (FCU) or iComet.. The Strengths and Difficulties Questionnaire (SDQ) used in Study I proved to be a reliable and valid instrument with high internal consistency, clear factor structure and high correlation with other similar instruments. In addition, the results support the online use of SDQ as well as using norms obtained through traditional administration even when the SDQ has been administrated online. The Emotion Regulation Questionnaire (ERQ) investigated in Study II was shown to have adequate reliability and construct validity. The specific use ...
Organisations should embrace the use of psychometric assessment to improve their health and safety cultures, according to practitioners in the field.
Comparisons of competing models using confirmatory factor analyses indicated that the four-factor model (somatic symptoms, depressed affect, positive affect, and interpersonal difficulties) possessed the best model fit (CFI=0.98; TLI= 0.98; RMSEA=0.05). CTT analyses showed that the CES-D had satisfactory internal consistency (α=0.74-0.87). Rasch analyses supported the unidimensionality of each CES-D subscale with no misfit item. Rating scale analyses indicated the need to collapse response categories 2 and 3 of the somatic symptoms subscale. Reliability analyses indicated satisfactory item reliability but poor person separation of all subscales. A floor effect for persons and an uneven spread of items across the spectrum were observed. A total of 3 differential item functioning (DIF) items (depressed affect: 1; somatic symptoms: 2) across gender, and 1 DIF item (depressed affect: 1) across the time course of recovery were found but none of them reached practical relevance. All items of the ...
A brief measure is needed to examine the role of hopelessness on mental and physical health outcomes in large population studies. We examined the validity and reliability of two brief measures of hopelessness in a large non-clinical sample, one negatively valenced (Brief-H-Neg) and one positively valenced (Brief-H-Pos). Both were shown to correlate strongly with the longer BHS and mirror the positive correlation seen between the BHS and a measure of depression, providing evidence of concurrent validity, with adequate internal consistency and test-retest reliability.. The sizes of the 2-week retest correlations for the brief measures reported in our non-clinical sample (0.67 and 0.72) are similar to those reported for the BHS in a sample of university undergraduates over a 3-week retest interval (0.67, female students) or a 10-week interval (0.75).25 ,26 Studies assessing the retest reliability of hopelessness instruments have reported varying retest intervals. Hopelessness may be conceptualised ...
Background and Objectives: The aim of the present research is to study the questions used in the 2018 MIR exam (a test that allows access to specialized medical training in Spain), describe their psychometric properties, and evaluate their quality. Materials and Methods: This analysis is performed with the help of classical test theory (CTT) and item response theory (IRT). The answers given to the test questions by a total of 3868 physicians are analyzed. Results: According to CTT, the average difficulty index for all of the test questions was 0.629, which falls into the acceptable category. The average difficulty index with correction for random effects was 0.515, which corresponds to a value within the optimal range. The mean discrimination index was 0.277, which is in the good category, while the mean point biserial correlation coefficient, with a value of 0.275 fits in the regular category. The values of difficulty and discrimination calculated according to the model of two parameters of the IRT
Preface to the first edition. Preface to the second edition. List of abbreviations. Part A. Introduction. 1. Introduction. 1.1 Patient-reported outcomes? 1.2 What is quality of life? 1.3 Historical development. 1.4 Why measure quality of life? 1.5 Which clinical trials should assess quality of life? 1.6 How to measure quality of life. 1.7 Instruments. 1.8 Conclusions. 2. Principles of measurement scales. 2.1 Introduction. 2.2 Scales and items. 2.3 Constructs and latent variables. 2.4 Indicator variables and causal variables. 2.5 Single global questions versus multi-item scales. 2.6 Single-item versus multi-item scales. 2.7 Psychometrics and item response theory. 2.8 Psychometric versus clinimetric scales. 2.9 Sufficient causes and necessary causes. 2.10 Discriminative, evaluative and predictive instruments. 2.11 Measuring quality of life: indicator or causal items? 2.12 Conclusions. Part B. Developing and Testing Questionnaires. 3. Developing a questionnaire. 3.1 Introduction. 3.2 General ...
Fits Rasch models (RM), linear logistic test models (LLTM), rating scale model (RSM), linear rating scale models (LRSM), partial credit models (PCM), and linear partial credit models (LPCM). Missing values are allowed in the data matrix. Additional features are the ML estimation of the person parameters, Andersens LR-test, item-specific Wald test, Martin-Löf-Test, nonparametric Monte-Carlo Tests, itemfit and personfit statistics including infit and outfit measures, various ICC and related plots, automated stepwise item elimination, simulation module for various binary data matrices.. ...
97) Muthén, B. (2002). Statistical and substantive checking In growth mixture modeling. [Available as PDF] 98) Muthén, B., Jo, B. & Brown, C. H. (2002). Assessment of treatment effects using latent variable modeling: Comments on the New York school choice study. [Available as PDF] 99) Muthen, B. (2004). Latent variable analysis: Growth mixture modeling and related techniques for longitudinal data. In D. Kaplan (ed.), Handbook of quantitative methodology for the social sciences (pp.345-368). Newbury Park, CA: Sage Publications. [Available as PDF]. 100) Lubke, G.H. & Muthén, B. (2005). Investigating population heterogeneity with factor mixture models. Psychological Methods, 10, 21-39. [Available as PDF]. 101) Muthén, B. (2006). Should substance use disorders be considered as categorical or dimensional? Addiction, 101, 6-16. [Available as PDF] 102) Muthén, B. & Asparouhov, T. (2006). Item response mixture modeling: Application to tobacco dependence criteria. Addictive Behaviors, 31, 1050-1066. ...
van der Meer, H., Visscher, C., Engelbert, R. H. H., Mulleners, W., Nijhuis-van der Sanden, M. W. G., & Speksnijder, C. M. (2017). Development and psychometric validation of the headache screening questionnaire. Abstract from WCPT , Capetown ...
Subscribe to Journal of Applied Measurement Go to Institute for Objective Measurement Home Page. The Rasch Measurement SIG (AERA) thanks the Institute for Objective Measurement for inviting the publication of Rasch Measurement Transactions on the Institutes website, www.rasch.org.. ...
We previously developed and psychometrically validated a self-reported memory problem (SRMP) measure using principal component analysis. In the present study, w...
If you have a question about this talk, please contact Professor John Rust.. Optimal design allows for estimating parameters of statistical models according to important optimality criteria, e. g., minimizing standard errors of estimators. Thus, optimal designs may considerably reduce the number of experimental units, such as respondents or items in empirical studies. For a long time, optimal design has not received much attention within psychology, but meanwhile interest for this subject is rapidly increasing as such designs are needed, e. g., in large scale assessment, adaptive testing or automatic item generation. In this presentation, first, fundamental principles of optimal design are introduced using well-known linear models, e. g. analysis of variance or simple regression. The rationale of adaptive, Bayesian, and minimax designs needed for nonlinear models will then be outlined. Such designs are presented for Item Response Theory (IRT) models, e.g., 1Pl and 2PL model or linear logistic ...
Edited by Susan E. Embretson, Scott L. Hershberger. In this volume prominent scholars from both psychology and education describe how these new rules of measurement work and how they differ from the old rules. Several contributors have been involved in the recent construction or revision of a major test, while others are well-known for their…. Hardback - 1999-02-01 ...
Find out what your ideal summer vacation would be based on your individual MBTI personality type. How accurately does this describe your ideal vacation?
I look at FE statistics in much the same way I look at psychometrics, econometrics, psychometrics, biometrics and mathematical science all disciplines outside mainstream statistics that add valuable techniques to statistical science. Wherever I can find good analytics ...
A study was undertaken to develop guidelines for the interpretation of the parameters of three multidimensional item response theory models and to determine...
In this study, firstly, the psychometric properties of the Turkish version of the Home Screening Questionnaire (3-6 years form), which is used to evaluate the quality of the home environment of young children, was examined, and then the relationship between the quality of the home environment and the variables related to parents and children were examined. Data was collected from 306 mothers of young children by using Demographic Information Form, Home Screening Questionnaire and Abilities Index. The psychometric properties of the instrument were investigated by exploratory and confirmatory factor analyses, item analysis, and internal consistency coefficient. According to the results of the analysis, the questionnaire is a single factor instrument consisting of 12 items and its psychometric properties are at an acceptable level. There was a moderate and significant relationship between the quality of the home environment and the level of education and income of the mothers and the level of ...
Individuals differ in the intensity of exercise they prefer and the intensity they can tolerate. The purpose of this project was to develop a measure of individual differences in the preference for and tolerance of exercise intensity. The steps involved in (a) item generation and face validation, (b) exploratory factor analysis and item selection, (c) structural validation, (d) examination of the internal consistency and test-retest reliability, (e) concurrent validation, and (f) construct validation are described. The Preference for and Tolerance of the Intensity of Exercise Questionnaire (PRETIE-Q) is a 16-item, 2-factor measure that exhibits acceptable psychometric properties and can be used in research aimed at understanding individual differences in responses to exercise and thus the psychological processes involved in the public health problem of exercise dropout. ...
This new book investigates the relevant literature, mastering Rasch measurement and the Rasch Unidimensional Measurement Models (RUMM) computer program with its relevant statistics and their applications in the field of education ...
Purpose: Patient-reported outcomes should ideally be adapted to the individual patient while maintaining comparability of scores across patients. This is achievable using computerized adaptive testing (CAT). The aim here was to develop an item bank for CAT measurement of the pain domain as measured by the EORTC QLQ-C30 questionnaire. Methods: The development process consisted of four steps: (1) literature search, (2) formulation of new items and expert evaluations, (3) pretesting and (4) field-testing and psychometric analyses for the final selection of items. Results: In step 1, we identified 337 pain items from the literature. Twenty-nine new items fitting the QLQ-C30 item style were formulated in step 2 that were reduced to 26 items by expert evaluations. Based on interviews with 31 patients from Denmark, France and the UK, the list was further reduced to 21 items in step 3. In phase 4, responses were obtained from 1103 cancer patients from five countries. Psychometric evaluations showed that ...
This study compared the psychometric properties of the original benefit and risk items using Likert scale agreement responses, to a modified set of benefit and risk items using 10-point importance scale responses. While the original items had established content validity, the findings of this study suggest that the latter modified benefit items have improved psychometric properties with good construct validity. The four-item benefits scale has a depth and breadth of the benefits construct with excellent reliability. The scale reflects a sound distribution and captures variability in patients responses, providing researchers and clinicians with a shorter set of benefit items with which to evaluate patient experiences with open notes.. This study did not result in the development of a risk scale as the analysis did not provide evidence for the reliability of the risk construct. Scales with poor internal consistency will not adequately represent the construct. It is likely that the limited number ...
Psychometric assessment has become standard practice for most global organizations and companies with a keen interest in thorough employee selection and development. Today psychometric assessment is used by more than 80% of the Fortune 500 companies in the USA and by over 75% of the Times Top 100 companies in the UK.. Never before has the appropriate selection of effective psychometric assessment tools been more important.. Read the rest of this entry ». ...
This study aimed to develop an instrument for measuring the attitudes that reflect the characteristics of the pandemic (Adult Pandemic Attitude Scale (A-PAS)) and verifying its validity and reliability. This study used a methodological research design and was conducted with a development step and an evaluation step. The development step included development of preliminary items, content validity, face validity, and preliminary investigation. The evaluation step included item analysis, construct validity, convergent validity, discriminant validity, criterion validity, factor naming, reliability, and completion of the final instrument. The A-PAS developed in this study consisted of a total of 20 items in five dimensions. The internal consistency of 20 items of the A-PAS, Cronbachs α was 0.92 for 20 items, Cronbachs α for each factor, a subscale of instrument, was 0.61~0.87 and Raykovs p coefficient of each factor, which is a subscale of the tool, was found to be 0.60 to 0.88. Analysis of construct
Student understanding and competency in probability have been investigated from different perspectives. Competency is often measured in the form of tests. The purpose of this study was to investigate whether perceived understanding and competency can be calibrated and assessed together using Rasch measurement tools. The study comprised 44 students who enrolled in the STAT131 Understanding Uncertainty and Variation course at University of Wollongong, Australia. Their voluntary participation in the study was through the e-learning Moodle platform where tests and assessment were administered online. Data were analysed using the Rasch measurement models. The study revealed majority of the students had little understanding about conditional and independent events prior to learning them but tended to demonstrate a slightly higher competency level afterward. Based on the Rasch map, there is an indication of some increase in learning and knowledge about probability concepts at the end of the two weeks lesson.
TY - JOUR. T1 - Initial psychometric properties of the pain care quality survey (PainCQ). AU - Beck, Susan L.. AU - Towsley, Gail L.. AU - Pett, Marjorie A.. AU - Berry, Patricia H.. AU - Smith, Ellen Lavoie. AU - Brant, Jeannine M.. AU - Guo, Jia Wen. PY - 2010/12/1. Y1 - 2010/12/1. N2 - This study examined the psychometric properties of the Pain Care Quality (PainCQ) survey, a new instrument to measure the quality of nursing and interdisciplinary care related to pain management. Hospitalized medical/surgical oncology patients with pain from 3 states completed the 44-item version of the PainCQ survey following completion of a nursing shift. Interdisciplinary items were evaluated over the entire hospital stay; nursing care was evaluated during the previous shift. The sample included 109 patients ranging in age from 20 to 84 (mean = 53.09). The sample was 58.7% female, 88% non-Hispanic white. Principal Axis Factoring with an oblimin rotation was used as factors were correlated. Two scales ...
Research has demonstrated that cancer patients report problems with cognitive functioning related to their cancer and their cancer treatments. Cognitive complaints refer to subjective reports of problems such as decreased memory, attention, concentration, and language skills. These problems with cognitive functioning can interfere with a persons quality of life. The current measures of cognitive complaints have poor or unknown psychometric properties. Therefore, the present study sought to examine the psychometric properties of a newly developed measure of cognitive complaints for cancer patients, the Functional Assessment of Cancer Therapy Cognitive Scale (FACT-Cog). Eighty-two patients were administered a comprehensive battery of neuropsychological tests assessing memory, executive functioning, motor, and attention, as well as a battery of psychosocial measures six months or twelve months after receiving a bone marrow transplant. Results indicated that the internal consistency reliability of the FACT
immune Uncategorized BIBR-1048, RPB8 Background Little is known about the psychometric properties of alcohol abuse and dependence criteria among recent-onset adolescent drinkers, particularly for those who consume alcohol infrequently. be endorsed at higher AUD severity. Two criteria, tolerance and time spent getting, using or recovering from alcohol showed differential item functioning between drinking frequency groups (< 7 vs. 7 days in past month), with lower discrimination and severity for more frequent drinkers. DSM-IV criteria were most precise for intermediate levels of AUD severity. Conclusions All but two DSM-IV criteria had consistent psychometric properties across drinking frequency groups. Symptoms were most precise for a narrow, intermediate range of AUD severity. Those assessing AUD in recent onset adolescent drinkers might consider additional symptoms to capture the full AUD continuum. = 9,356 individuals ages 12C21 who reported (1) drinking in the past month and (2) their first ...
Fingerprint Dive into the research topics of Development and psychometric evaluation of the Hypnotic-Use Urge Scale. Together they form a unique fingerprint. ...
Certainly, the main difficulty of this study is the limited sample size. However, the aim was to find a way to reasonably evaluate rating scale type assessment instruments at an early stage (which implies a small sample), and thereby make it possible to introduce improvements or evaluate the appropriateness of their use before a further large scale application. Furthermore, the history tells us that small studies are carried out quite frequently. We therefore suggest this 3- step strategy, which starts out from the use of sum score as the aggregated message from an instrument. It is well known that statistical models are vulnerable when applied on small samples. The sum score model is a model based solely on conditions in the assessment instrument - equally weighted items with unit distances between item categories - a fact which is often overlooked. In step 1, the nonparametric approach, basic characteristics are revealed with as few modelling restrictions as possible and form the basis for ...
The primary studies often use a range of statistics to present their results. Convenience functions to convert these onto a common metric are presented by: compute.es which converts from various statistics to d, g, r, z and the log odds ratio, MAc which converts to correlation coefficients, MAd which converts to mean differences, and metafor which converts to effect sizes an extensive set of measures for comparative studies (such as binary data, person years, mean differences and ratios and so on), for studies of association (a wide range of correlation types), for non-comparative studies (proportions, incidence rates, and mean change). It also provides for a measure used in psychometrics (Cronbachs alpha). esc provides a range of effect size calculations with partial overlap with metafor but with some extras, noticeably for converting test statistics, also includes a convenience function for collating its output for input to another package like metafor or producing a CSV file. effsize ...
The primary studies often use a range of statistics to present their results. Convenience functions to convert these onto a common metric are presented by: compute.es which converts from various statistics to d, g, r, z and the log odds ratio, MAc which converts to correlation coefficients, MAd which converts to mean differences, and metafor which converts to effect sizes an extensive set of measures for comparative studies (such as binary data, person years, mean differences and ratios and so on), for studies of association (a wide range of correlation types), for non-comparative studies (proportions, incidence rates, and mean change). It also provides for a measure used in psychometrics (Cronbachs alpha). esc provides a range of effect size calculations with partial overlap with metafor but with some extras, noticeably for converting test statistics, also includes a convenience function for collating its output for input to another package like metafor or producing a CSV file. effsize ...
Aged; Aged, 80 and over; Cognition Disorders/*diagnosis/psychology; Female; Geriatric Assessment/*methods; Homes for the Aged/organization & administration; Humans; Ireland; Male; *Mental Status Schedule; *Neuropsychological Tests; Nursing Homes; Predictive Value of Tests; Psychometrics/ ...