BACKGROUND Depression among adolescents is common but most cases go undetected. Brief questionnaires offer an opportunity to identify probable cases but properly validated cut-off points are often unavailable, especially in non-western countries. Sex differences in the prevalence of depression become marked in adolescence and this needs to be accounted when establishing cut-off points. METHOD...

Short texts clustering is one of the most difficult tasks in natural language processing due to the low frequencies of the document terms. We are interested in analysing these kind of corpora in order to develop novel techniques that may be used to improve results obtained by classical clustering algorithms. In this paper we are presenting an evaluation of different internal clustering validity...

Content analysis is now also popular in LIS research. It is a flexible and unobtrusive method to analyse the meanings of narratives objectively. However, the objectivity of analysis relies heavily on a well-constructed coding scheme as well as the consistency of coding behaviour. In this paper, we shared our experiences with content analysis in three very different LIS research. We emphasized o...

and seminar participants at Harvard, Cornell, Swarthmore, and the 2008 AEFA meetings for helpful discussions and comments. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research. ABSTRACT Although recent evidence suggests that non-cognitive skills such as engagement matter for academic and economic success, ther...

BACKGROUND Controlled clinical trials of health care interventions are either explanatory or pragmatic. Explanatory trials test whether an intervention is efficacious; that is, whether it can have a beneficial effect in an ideal situation. Pragmatic trials measure effectiveness; they measure the degree of beneficial effect in real clinical practice. In pragmatic trials, a balance between extern...

The Örebro Musculoskeletal Screening Questionnaire (ÖMSQ) is a recently validated, 21-item instrument. It modified the original Örebro Musculoskeletal Pain Questionnaire (ÖMPainQ) providing broader focus and also improved development and practicality for identifying work-injured patients at-risk of persistent musculoskeletal problems. These instruments are critiqued for practicality and a short...

Introduction: The original 89-item Zuckerman-Kuhlman Personality Questionnaire (form III Revised, ZKPQ-III-R) is a widely accepted and used self-report measure for personality traits. This study assessed the reliability and construct validity of the Chinese short 46-item version of the ZKPQ-III-R in a sample of adolescents and young adults. Methodology: A total of 1,019 Chinese adolescents and ...

OBJECTIVE To examine the reliability and validity of the self-report Korean version of Strengths and Difficulties Questionnaire (SDQ-Kr) in the community sample. METHODS The SDQ-Kr was administered to a large sample of school children and adolescents (n=2814) and youth attendees of a psychiatric clinic (n=385) aged 11-16 years. To examine temporal stability, the same questionnaire was adminis...

The aim of this study was to separately analyze the role of featural and configural face representations. Stimuli containing only featural information were created by cutting the faces into their parts and scrambling them. Stimuli only containing configural information were created by blurring the faces. Employing an old-new recognition task, the aim of Experiments 1 and 2 was to investigate wh...

OBJECTIVES To linguistically and culturally adapt the Child-OIDP, an Oral Health-Related Quality of Life (OHRQoL) index, into Spanish for use among adolescents, and to validate it by evaluating the psychometric properties of the self-administered version. STUDY DESIGN Following a forward - backward translation procedure, the English version of the questionnaire was translated by independent t...