The aim of this study was to analyse the psychometric properties of the Spanish NEO Five Factor Inventory-Revised (NEO-FFI-R) using Rasch analyses, in order to test its rating scale functioning, the reliability of scores, internal structure, and differential item functioning (DIF) by gender in a psychiatric sample. The NEO-FFI-R responses of 433 Spanish adults (154 males) with an anxiety disord...

The conceptualization of a distinct construct known as statistics anxiety has led to the development of numerous rating scales, including the Statistical Anxiety Rating Scale (STARS), designed to assess levels of statistics anxiety. In the current study, the STARS was administered to a sample of 423 undergraduate and graduate students from a midsized, western United States university. The Rasch...

BACKGROUND The Patient Activation Measure (PAM) consists of 13 items and assesses patient (or consumer) self-reported knowledge, skills, and confidence for self-management of one's health or chronic condition. The aim of this study was to translate the original American version of the PAM13 into German and to test the psychometric properties of the German version in an elderly, multimorbid popu...

OBJECTIVE To examine the construct and rating scale of the Assessment of Capacity for Myoelectric Control, an assessment to evaluate ability in using a prosthetic hand. DESIGN Cross-sectional study. SUBJECTS Upper limb prosthesis users with different prosthetic levels/sides and prosthetic experience were included (n = 96). METHODS Subjects' assessments with the Assessment of Capacity for ...

In order to be useful for their intended purposes, outcome measures (rating scales and questionnaires) must provide information that allows valid inferences and decisions to be made. Basic classical test theory is still widely used in peer-reviewed, indexed journals for validating these tools. Classical test theory methods mainly focus on an instrument's total score, whichis simply asserted as ...

Background: The prevalence of morbid obesity is an increasing health problem in most parts of the world and is related to lower quality of life. Sense of coherence, or the perception that the world is meaningful and predictable, is considered a promising health resource for changing behaviour and adopting a healthier lifestyle. Thus, a valid and reliable instrument for measuring sense of cohere...

Underlying the recently developed notions of applied ELT and life syllabus is the idea that language classes should give precedence to learners’ life qualities, for instance emotional intelligence (EI), over and above their language skills. By so doing, ELT is ascribed an autonomous status and ELT classes can lavish their full potentials to the learners. With that in mind, this study aimed to d...

PURPOSE To evaluate the psychometric properties of the Adult Strabismus-20 (AS-20)- a health-related quality of life (HRQoL) questionnaire in adults with strabismus, and if flawed, to revise the AS-20 and its subscales creating valid measurement scales. METHODS 584 adults (meanage, 27.5 years) with strabismus were recruited from an outpatient clinic at a South Indian tertiary eye care centre ...

This chapter provides an introductory overview of many-facet Rasch measurement (MFRM). Broadly speaking, MFRM refers to a class of measurement models that extend the basic Rasch model by incorporating more variables (or facets) than the two that are typically included in a test (i.e., examinees and items), such as raters, scoring criteria, and tasks. Throughout the chapter, a sample of rating d...