BACKGROUND The Pediatric Crohn's Disease Activity Index (PCDAI) has become the standard outcome measure in pediatric Crohn's disease (CD) clinical research. Other versions have been proposed but without systematic evaluation. The aim was to assess validity and responsiveness of the abbreviated PCDAI (abbrPCDAI), short PCDAI (shPCDAI), and modified PCDAI (modPCDAI) as measures of disease activit...

BACKGROUND This study was to elucidate the psychometric properties of the Korean version of the Diabetes Symptom Checklist-Revised (K-DSC-R), which is a patient-reported outcome measure of diabetes symptom burden. METHODS A sample of 432 Korean patients with diabetes was recruited from university hospitals. The data were analyzed using exploratory factor analysis (EFA), confirmatory factor an...

BACKGROUND The PedsQL 3.0 Cancer Module is a widely used instrument to measure pediatric cancer specific health-related quality of life (HRQOL) for children aged 2 to 18 years. We developed the Japanese version of the PedsQL Cancer Module and investigated its reliability and validity among Japanese children and their parents. METHODS Participants were 212 children with cancer and 253 of their...

BACKGROUND The purpose is to evaluate the psychometric properties of reliability and discriminant validity of the Brazilian Portuguese versions of two instruments used in the diagnosis of interstitial cystitis (IC): "The Interstitial Cystitis Symptom Index and Problem Index" (The O'Leary-Sant), and "Pelvic Pain and Urgency/Frequency (PUF) Patient Symptom Scale". METHODS Three groups of patien...

The present investigation employs item response theory (IRT) to develop an abbreviated medical fear survey (MFS). Application of IRT analyses in study 1 (n = 931) to the original 50-item MFS resulted in a 25-item shortened version. Examination of the location parameters also resulted in a reduction of the Likert-type scaling of the MFS by removing the last response category ("terror"). The five...

BACKGROUND The STarT Back Screening Tool (SBST) was developed to stratify low back pain patients according to their risk of future physical disability so that prognostic subgroups can receive matched treatments in primary care. OBJECTIVE To measure the construct and discriminative validity of the SBST-Brazil questionnaire. METHOD A hundred and fifty one patients were recruited to test the c...

The construct validity of the Job Descriptive Index (JDI) was investigated by using a meta-analysis to summarize previous empirical studies that examined antecedents, correlates, and consequences of job satisfaction. In total, 79 unique correlates with a combined total of 1,863 correlations were associated with the JDI subdimensions. The construct validity of the JDI was supported by (a) accept...

Objective: The aims of the present study was to develop and validate a quick repetition test using familiar, culture-based words for the assessment of the Farsi speaking children suffering from Speech Sound Disorders (SSD). Method: The study population was divided into two groups, including 419 participants without any clinical signs of speech impairment and 36 cases with SSD. Psychometric pro...

OBJECTIVE Classification criteria for systemic sclerosis (SSc; scleroderma) are being updated jointly by the American College of Rheumatology and European League Against Rheumatism. Potential items for classification were reduced to 23 using Delphi and nominal group techniques. We evaluated the face, discriminant, and construct validity of the items to be further studied as potential criteria. ...

OBJECTIVE To identify the validity and reliability of the Korean version World Health Organization Quality of Life Assessment (WHOQOL)-BREF among people with physical impairments living in a community. METHODS Participants listed in the community-based rehabilitation project were recruited from 45 public health centers. People with brain lesions or physical disabilities were selected. Respond...