This new edition of the book will be produced in two versions. The textbook will include a CD-Rom
with two videotaped lectures by the authors. This book translates biostatistics in the …

Cronbach's α is the most widely used index of the reliability of a scale. However, its use and
interpretation can be subject to a number of errors. This article discusses the historical …

Objective: The authors sought to evaluate the clinical efficacy of dialectical behavior therapy
compared with general psychiatric management, including a combination of …

The third edition of PDQ Statistics provides an overview of all major statistical methods, giving
the reader a good understanding of statistics and how they are used in research articles. It …

Health Measurement Scales is the ultimate guide to appraising, developing, and validating
measurement scales that are used in the health sciences. Written in a clear and practical style…

Objective Results of reliability and agreement studies are intended to provide information
about the amount of error inherent in any diagnosis, score, or measurement. The level of …

One of the central tenets of classical test theory is that scales should have a high degree of
internal consistency, as evidenced by Cronbach's α, the mean interitem correlation, and a …

OBJECTIVE: The authors assessed lifetime psychopathology in a general population sample
and compared the rates of five psychiatric disorder categories between those who reported …

The objective of this study was to report on the prevalence and correlates of anxiety and
mood problems among 9- to 14- year-old children with Asperger syndrome (AS) and high-…

Factor analysis is a technique which is designed to reveal whether or not the pattern of
responses on a number of tests can be explained by a smaller number of underlying traits or …