IN THEIR EDUCATION FORUM “EVALUATING MONTESSORI EDUCATION” (29 SEPT. 2006, P. 1893), A. Lillard and N. Else-Quest present Montessori education as being superior to other types of schools and having “remarkable outcomes.” Unfortunately, the analyses backing these value judgments are plagued by methodological and statistical problems and thus do not provide support for such claims. To evaluate Mo...

Background: Peak Expiratory Flow Rate (PEFR) is recommended as a tool for control of asthma. The purpose of this study was to determine the normal value of PEFR in the healthy high school children in Babol, Iran. Methods: This study was conducted on 470 healthy high school children (285 girls, 185 boys with the age between 14-18 years). For the determination of PEFR we used Mini Wright Peak Flo...

Using longitudinal data from 769 white adolescents in the Midwest, this research applies a social structure and personality perspective to examine variation in self-esteem and mastery trajectories by gender and SES across the high school years. Analyses reveal that high SES adolescents experience significantly steeper gains in self-esteem and mastery compared to low SES adolescents, resulting i...

BACKGROUND Understanding the risk and trends of sports-related concussion among 12 scholastic sports may contribute to concussion detection, treatment, and prevention. PURPOSE To examine the incidence and relative risk of concussion in 12 high school boys' and girls' sports between academic years 1997-1998 and 2007-2008. STUDY DESIGN Descriptive epidemiology study. METHODS Data were prosp...

background and aims. temporomandibular disorders (tmds) are the most common condition affecting the temporomandibular joint and associated structures. the aim of this study was the epidemiologic evaluation of tmds and related factors in a group of iranian adolescents. materials and methods. this descriptive cross-sectional survey included a sample of 800 high school students (400 girls and 400 ...