PURPOSE We developed and validated an instrument to measure the quality of life (QoL) of caregivers of children with primary congenital glaucoma (PCG): the Caregiver's Congenital Glaucoma Quality of Life (CarCGQoL) questionnaire. METHODS A total of 70 caregivers of children with PCG under follow-up at a tertiary eye care center in India participated in a series of focus groups, and pre- and p...

This study aimed to overcome the researchers' extreme attention to essentially qualitative methods in research on language learners' imagined communities and move towards quantification in order to achieve a more tangible image of this construct. To do so, the present researchers followed three main phases. First, a hypothesized model of language learners' imagined communities with eight compon...

This study aimed to analyze the fit of four-factor model 29-item and 12-item Buss-Perry Aggression Questionnaire (BPAQ) on a sample Portuguese male perpetrators intimate partner violence (IPV; N = 279) test measurement invariance between type (forensic non-forensic) sentence (prison community). Confirmatory factor analysis (CFA) did not support BPAQ version. The BPAQ–short form (BPAQ-SF) showed...

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Cheating is a common phenomenon in high stakes admission, licensing and university exams and threatens their validity. To detect if some exam questions had been affected by cheating, we simulated how data would look like if some test takers possessed item preknowledge: Responses to a small number of items were set to correct for 1-10% of test takers. Item difficulty, item discrimination, item f...

BACKGROUND The dimensional structure, effective number of item responses and item redundancies are controversial features of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) requiring more light. The aims of the present study are to revisit the dimensional structure and propose a shorter version of the instrument. METHODS The sample comprised 652 elderly and their info...

BACKGROUND AND AIM Thyroid diseases are prevalent and chronic. With treatment, quality of life is restored in most, but not all patients. Construct validity of the thyroid-related quality of life questionnaire, ThyPRO, has been established by multi-trait scaling, but not evaluated with more elaborate methods. The purpose of the present study was to evaluate dimensionality of the ThyPRO scales a...

PURPOSE this study was designed to improve the measurement of financial exploitation (FE) by testing psychometric properties of the older adult financial exploitation measure (OAFEM), a client self-report instrument. DESIGN AND METHODS rasch item response theory and traditional validation approaches were used. Questionnaires were administered by 22 adult protective services investigators from...