Assessing healthcare provider performance factors (HCPP) is crucial for enhancing the quality of healthcare services and the overall effectiveness of the healthcare system. Existing measurement tools ...

Abstract: Empirical research aims to establish generalizable claims from data. Such claims may involve concepts that must be measured indirectly by using indicators. Construct validity is concerned ...

Background The Myositis Activity Profile (MAP), a questionnaire to assess limitations of activities of daily life in patients with inflammatory myopathy (IM), was developed and tested on psychometric ...

Objectives The Disease Activity index for Psoriatic Arthritis (DAPSA) was developed to assess disease activity in patients with psoriatic arthritis (PsA). A modified version, DAPSA28, uses 28 joints ...

Objective To evaluate construct validity and reliability of the Portuguese (Brazil) version of Online Cognition Scale (OCS-BR). Methods Portuguese (Brazil) versions of Online Cognition Scale (OCS), of ...

In research, whether in psychology, education, or marketing, we often want to measure things that aren’t easily quantifiable. Think about concepts like happiness, intelligence, or brand loyalty. These ...

Have you ever taken a personality quiz and wondered if it truly captured who you are? Or have you read a news article about a study and questioned the measurements used? These are situations where ...

In a recent article Fahrenfort and colleagues demonstrate that auditory and monetary punishment change the criteria that participants use to rate the clarity of perception (Fahrenfort et al., 2025).

Copyright: © 2025 The Author(s). Published by Elsevier Ltd. We thank Jiang and colleagues 1 for their thoughtful commentary on our research article 2 and appreciate ...

Objectives Patient experience questionnaires have been criticised owing to the lack of supporting psychometric evidence. The objective of this study was to describe the development and psychometric ...

Several conceptions of validity have emphasized the contingency of validity on theory. Here we revisit several contributions to the discourse on the concept of validity, which we consider particularly ...