Learn More
Measurements of agreement are needed to assess the acceptability of a new or generic process, methodology, and formulation in areas of laboratory performance, instrument or assay validation, method comparisons, statistical process control, goodness of t, and individual bioequivalence. In all of these areas, one needs measurements that capture a large(More)
This paper deals exclusively with crossover designs for the purpose of comparing t test treatments with a control treatment when the number of periods is no larger than t + 1. Among other results it specifies sufficient conditions for a crossover design to be simultaneously A-optimal and MV-optimal in a very large and appealing class of crossover designs.(More)
BACKGROUND Epidemiological data on personality disorders, comorbidity and associated use of services are essential for health service policy. AIMS To measure the prevalence and correlates of personality disorder in a representative community sample. METHOD The Structured Clinical Interview for DSM-IVAxis II disorders was used to measure personality(More)
CONTEXT Certain black and minority ethnic groups are at increased risk for psychoses. It is unknown whether risk for second- and later-generation black and minority ethnic groups in the United Kingdom is universally increased or varies by ethnicity, population structure, or diagnostic category. OBJECTIVES To examine whether excess risk in black and(More)
STUDY OBJECTIVE (1) To provide a didactic and conceptual (rather than mathematical) link between multilevel regression analysis (MLRA) and social epidemiological concepts. (2) To develop an epidemiological vision of MLRA focused on measures of health variation and clustering of individual health status within areas, which is useful to operationalise the(More)
Actuarial risk assessment tools are used extensively to predict future violence, but previous studies comparing their predictive accuracies have produced inconsistent findings as a result of various methodological issues. We conducted meta-analyses of the effect sizes of 9 commonly used risk assessment tools and their subscales to compare their predictive(More)
Android phones often carry personal information, attracting malicious developers to embed code in Android applications to steal sensitive data. With known techniques in the literature, one may easily determine if sensitive data is being transmitted out of an Android phone. However, transmission of sensitive data in itself does not necessarily indicate(More)
Android platform adopts permissions to protect sensitive resources from untrusted apps. However, after permissions are granted by users at install time, apps could use these permissions (sensitive resources) with no further restrictions. Thus, recent years have witnessed the explosion of undesirable behaviors in Android apps. An important part in the(More)
BACKGROUND Current classifications of personality disorders do not classify severity despite clinical practice favouring such descriptions. AIMS To assess whether an existing measure of severity of personality disorder predicted clinical pathology and societal dysfunction in a community sample. METHOD UK national epidemiological study in which(More)