BACKGROUND For people to be able to access, understand, and benefit from the increasing digitalization of health services, it is critical that services are provided in a way that meets the user's needs, resources, and competence. OBJECTIVE The objective of the study was to develop a questionnaire that captures the 7-dimensional eHealth Literacy Framework (eHLF). METHODS Draft items were cre...

.......................................................................................................... 3 Introduction ..................................................................................................... 4 Single-stimulus response format ................................................................... 4 Response biases affecting single-stimulus items ........................

Embedding item response theory (IRT) models within a multilevel modeling framework has been shown by many authors to allow better estimation of the relationships between predictor variables and IRT latent traits (Adams, Wilson, & Wu, 1997). A multilevel IRT model recently proposed by Kamata (1998, 2001) yields the additional benefit of being able to accommodate data that are collected in hierar...

The ItchyQoL is an itch?specific patient?reported outcome measure used to assess quality of life in patients with chronic pruritus (CP). We aimed and extend the psychometric properties using classical test theory (CTT) item response (IRT). Item characteristic curves were analysed investigate whether categories functioning optimally. Confirmatory factor analyses carried out on prior after rescor...

OBJECTIVE To validate the dimensionality, hierarchical properties, and reliability of the Frenchay Activities Index. DESIGN Self-report survey of patients with stroke. PATIENTS A total of 127 patients provided 254 observations before and after treatments. METHODS Multidimensional Rasch model was conducted. RESULTS The 2-factor model showed the significantly smallest deviance and fitted ...

Item response theory (IRT) is concerned with accurate test scoring and development of test items. You design test items to measure various kinds of abilities (such as math ability), traits (such as extroversion), or behavioral characteristics (such as purchasing tendency). Responses to test items can be binary (such as correct or incorrect responses in ability tests) or ordinal (such as degree ...

The Vocabulary Size Test (VST) is one of the most commonly used assessment tools for measuring English vocabulary size in field language testing. Despite its common usage, only a limited number validity and reliability studies have been carried out with regard to VST. Besides, they were mostly predicated on Rasch model. This validation study has attempted reveal evidence construct VST, this end...