The Dutch version of the Brief Illness Perception Questionnaire is an appropriate instrument for measuring patients' perceptions in acute low back pain patients, showing acceptable internal consistency and reliability. Concurrent validity is adequate, however, the instrument may be unsuitable for detecting …

The aim of this study was to develop the Mastication Observation and Evaluation instrument for observing and assessing the chewing ability of children eating solid and lumpy foods. This study describes the process of item definition and item selection and reports the content validity, reproducibility …

Airports look alike all over the world. Schiphol has conformed to the patterns of the airport, but its unique design makes it stand out. The book Megastructure Schiphol looks into the history of the Netherlands’ most famous national airport and its sophisticated appearance. Schiphol has grown in fits …

Since 1995, the CINOP International Agency has been responsible for distributing and managing the European subsidies on behalf of the European Commission, with great success. In the past 15 years, more than 40,000 Dutch participants have had learning experiences in different European countries and over …

AIM: This article describes the results of a study into the psychometric properties of a questionnaire about student nurses' perceptions of mental health care. The questionnaire was constructed in 2008, but has not yet been tested in terms of construct validity and reliability. A validated questionnaire …

To report on the development and psychometric evaluation of the Radboud Oral Motor Inventory for Parkinsons Disease (ROMP), a newly developed patient-rated assessment of speech, swallowing, and saliva control in patients with Parkinsons disease (PD). To evaluate reproducibility, 60 patients completed …

The purpose of the research was the development of a questionnaire that can measure the behaviour of groups of students (for instance departments' cohorts) in Personal Information Management (PIM). Variables for the questionnaire were derived from the international literature on PIM. The questionnaire …

Digital Dreams is a young, ambitious game design and development company with drive and a lot of technical knowledge in it's field. The lack in communication skills has led to a situation where there was no consistency or strategic intent in the communication. In order to bring the company from an infancy …

We show how to estimate a Cronbach's alpha reliability coefficient in Stata after running a principal component or factor analysis. Alpha evaluates to what extent items measure the same underlying content when the items are combined into a scale or used for latent variable. Stata allows for testing the reliability …