BACKGROUND Predicted maturity offset and age at peak height velocity are increasingly used with youth athletes, although validation studies of the equations indicated major limitations. The equations have since been modified and simplified. OBJECTIVE The objective of this study was to validate the new maturity offset prediction equations in independent longitudinal samples of boys and girls. ...

BACKGROUND Treatment engagement is often measured in terms of treatment retention and drop out, resource utilization, and missed appointments. Since persons may regularly attend treatment sessions but not pay close attention, actively participate, or comply with the program, attendance may not reflect the level of effort put into treatment. Teens in correctional settings may feel coerced to att...

Objective: The aim of this study was to test the performance of an adjusted probability method for sociometric classification proposed by García Bacete (GB) in comparison with two previous methods. Specific goals were to examine the overall agreement between methods, the behavioral correlates of each sociometric group, the sources for discrepant classifications between methods, the behavioral p...

"Based on a set of solid measures computed from the 1990 census data and the age validation procedures conducted in our Hangzhou, Beijing and Chengdu surveys, this paper shows that the Han Chinese centenarians' age reporting [is generally] good, because Han Chinese people [are] used to remember their birth dates. Age-reporting of the super centenarians is very rare so that a small number of the...

To contribute to the validation of the sensory and behavioral criteria for Regulation Disorders of Sensory Processing (RDSP) (DC:0-3R, 2005), this study examined a sample of toddlers in a clinical setting to analyze: (1) the severity of sensory modulation deficits and the behavioral symptoms of RDSP; (2) the associations between sensory and behavioral symptoms; and (3) the specific role of sens...

Furthermore, it made use of umbilical girth, which was difficult to measure in the donkeys. The equation of Eley and French (1993) for adult donkeys also consistently overestimated the liveweights of the Moroccan donkeys. Hard working donkeys, particularly in areas where the feed supply is irregular, are more likely to be in poor than in good body condition. Unfortunately Eley and French (1993)...

We examined the relationships among intrinsic and extrinsic motivational orientations, achievement goals, and intelligence beliefs for 202 3rdthrough 8th-grade children from K-8 schools. Analyses of age differences revealed substantial declines in intrinsic – but not extrinsic – motivation with increasing grade level. Intrinsic motivation was associated with mastery goals but unrelated to perfo...

This article presents the development and validation of the aging stereotypes and exercise scale (ASES), which measures different dimensions of aging stereotypes in the exercise domain. Drawing on past research on older adults' perceived barriers to exercise, these dimensions include stereotypes about positive and negative exercise outcomes for older adults and about older adults' psychological...