OBJECTIVE To develop a hierarchical scale that measures activity limitations in walking in patients with lower-extremity disorders who live at home. DESIGN Cross-sectional study. SETTING Orthopedic workshops and outpatient clinics of secondary and tertiary care centers. PARTICIPANTS Patients (N=981; mean age +/- standard deviation, 58.6+/-15.4 y; 46% men) living at home, with different lo...

UNLABELLED Evaluating the extent to which groups or subgroups of individuals differ with respect to primary healthcare experience depends on first ruling out the possibility of bias. OBJECTIVE To determine whether item or subscale performance differs systematically between French/English, high/low education subgroups and urban/rural residency. METHOD A sample of 645 adult users balanced by ...

PROMIS (Patient-Reported-Outcomes Measurement Information System) is an NIH Roadmap network project intended to improve the reliability, validity, and precision of PROs and to provide definitive new instruments that will exceed the capabilities of classic instruments and enable improved outcome measurement for clinical research across all NIH institutes. Item response theory (IRT) measurement m...

OBJECTIVE To evaluate cross-regional validity of the Assessment of Motor and Process Skills (AMPS) with a specific focus on valid use with Middle Europeans. DESIGN Descriptive cross-regional validation study. PARTICIPANTS A total of 1346 participants from Middle Europe and 144,143 participants from North America, UK/Ireland, the Nordic Countries, other Europe, Australia/New Zealand and Asia...

The purpose of the present study was to relate response strategy with person ability estimates. Two behavioral strategies were examined: (a) the strategy to skip items in order to save time on timed tests, and, (b) the strategy to select two responses on an item, with the hope that one of them may be considered correct. Participants were 4,422 individuals who were administered a standardized ac...

Abstract We investigated the potential impact of differential item functioning (DIF) on group-level mean and standard deviation estimates using empirical simulated data in context large-scale assessment. For investigation, PISA 2018 cognitive domains (Reading, Mathematics, Science) were analyzed Jackknife sampling to explore DIF country scores their errors. found that countries have a large num...

The popularity of intelligent tutoring systems (ITSs) is increasing rapidly. In order to make learning environments more efficient, researchers have been exploring the possibility of an automatic adaptation of the learning environment to the learner or the context. One of the possible adaptation techniques is adaptive item sequencing by matching the difficulty of the items to the learner’s know...

This paper proposes the automatic generation of Fill-in-the-Blank Questions (FBQs) together with testing based on Item Response Theory (IRT) to measure English proficiency. First, the proposal generates an FBQ from a given sentence in English. The position of a blank in the sentence is determined, and the word at that position is considered as the correct choice. The candidates for incorrect ch...