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71.
Lau AS Leeb RT English D Graham JC Briggs EC Brody KE Marshall JM 《Child abuse & neglect》2005,29(5):533-551
OBJECTIVE: The primary aim of the study was to identify a classification scheme, for determining the predominant type of maltreatment in a child's history that best predicts differences in developmental outcomes. METHOD: Three different predominant type classification schemes were examined in a sample of 519 children with a history of alleged maltreatment. Cases were classified into predominant maltreatment types according to three different schemes: Hierarchical regression analyses examined whether the HT, SFT, and EHT type classifications contributed to prediction of child behavior problems, trauma symptoms and adaptive functioning. RESULTS: After controlling for demographic factors, the HT definitions predicted four outcomes, while the SFT definitions predicted three, and the EHT classifications contributed to the prediction of five child outcomes. The co-occurrence of multiple types of maltreatment was robustly related to outcomes. However, the HT and SFT classifications predicted outcomes even after accounting for the co-occurrence of multiple maltreatment subtypes. CONCLUSION: A classification scheme that differentiates between type combinations and single maltreatment types may have the greatest predictive validity. Over and above knowing about co-occurrence of maltreatment sub-types, it is important to understand what type, or constellation of types, of maltreatment have been alleged in a child's history. 相似文献
72.
This paper applies the mathematical technique of Data Envelopment Analysis to the problem of appraisal in Higher Education. The technique can be understood as an idealised self and peer appraisal: evaluating others in the same way that we would optimally evaluate ourselves relative to those others. The technique is applied to examples of student and staff appraisal. Although the main focus of this article is on the technique itself (its rationale, the prerequisites for use, and the insights that it yields), we also discuss the wider implications of having and using such a technique to assist appraisal. 相似文献
73.
74.
Comparison of force-related performance indicators between heavyweight and lightweight rowers 总被引:1,自引:0,他引:1
Doyle MM Lyttle A Elliott B 《Sports biomechanics / International Society of Biomechanics in Sports》2010,9(3):178-192
The aim of this study was to examine biomechanical variables relating to the force production of men's Lightweight (LW) and Heavyweight (HW) rowing pairs. Seven HW and seven LW coxless pairs were studied under a range of stroke rates, from 20 spm to race rating (average of 33.7 spm for the HWs and 33.9 spm for the LWs). Each crew was equipped with biomechanical apparatus allowing the measurement of gate force, horizontal oar angle, and boat velocity. The HW crews exhibited significantly higher (p < 0.05) values for all variables examined, at all rates. Peak handle force was 26.2% to 30.2% higher in the HW group. Average handle force ranged from 18.7% to 22.1% higher than the LW group. Work per stroke was found to be 26% to 28% higher for the HW crews, and Power Per Kilogram was also greater for the HW crews, from 24.0% to 29.2%. The LWs were observed to be consistently, but not significantly, slower than the HWs (from 96.9% at the race situation, to 98.7% at 28 spm). These observations are important when considering biomechanical performance indicators in rowing, as significant changes in performance indicators may lead to only minimal alteration in boat velocity. 相似文献
75.
76.
Rossana Bisceglia Michal Perlman Diana Schaack Jennifer Jenkins 《Early childhood research quarterly》2009,24(2):121-132
The psychometric properties of the Infant–Toddler Environment Rating Scale-Revised Edition (ITERS-R) were examined using 153 classrooms from child-care centers where resources were tied to center performance. An exploratory factor analysis revealed that the scale measures one global aspect of quality. To decrease redundancy, subsets of items were selected randomly and by experts who rated items according to ease of administration and importance to quality. The shorter subsets demonstrated good discriminant validity, adequate to good psychometric properties, and high associations to the full ITERS-R score. They also demonstrated similar associations to staff education and staff-to-child ratio, as the full instrument. The best assessment of quality was demonstrated by the shortened subset that included items that assess both structural and process features of quality. Multilevel-analyses indicated that classrooms from the same providers score more similarly on ITERS-R than classrooms from other providers. The implications for using the ITERS-R in high-stakes contexts are discussed. 相似文献
77.
Debra A. Murphy William D. Marelich Diane M. Herbeck Diana L. Payne 《Child development》2009,80(6):1676-1691
The influence of parenting skills on adolescent outcomes among children affected by maternal HIV/AIDS (N = 118, M age = 13) was investigated. Among families with more frequent family routines, over time adolescents showed lower rates of aggression, anxiety, worry, depression, conduct disorder, binge drinking, and increased self‐concept. Among families with higher levels of parental monitoring, adolescents showed significant declines in anxiety and depression, conduct disorder, and binge drinking, along with increased self‐concept. Mothers’ level of illness was associated with parenting. Greater variability in parental monitoring resulted in higher levels of problem behaviors. 相似文献
78.
William R. Doyle 《Research in higher education》2009,50(1):52-72
The impact of increased academic intensity on transfer rates from community colleges to 4-year institutions has been estimated
only from observational data, with the possibility of selection bias. This study uses matching estimators to overcome possible
selection bias and estimate the causal impact of increased academic intensity on transfer rates. Using student unit record
data from Tennessee for the years 1995 through 2004, I find that taking 12 or more credit hours increases the probability
of transfer from between 11% and 15%.
相似文献
William R. DoyleEmail: |
79.
Cynthia B. Powell Kim L. Pamplin Robert E. Blake Diana S. Mason 《Journal of Science Education and Technology》2010,19(2):126-132
Secondary teachers participating in summer professional development chemistry workshops in Texas used an online chemistry
tutoring program, OWL Quick Prep (Day et al. in OWL: Online Web-based Learning, Brooks-Cole Cengage Learning, Florence, KY,
1997) as a part of the inservice training. Self-reported demographic data were used to identify factors in preparation and practice
that affected pretest and posttest scores. Data from the pretests and posttests indicate that nomenclature and problems requiring
calculations were the most challenging topics for the cohort. The participants who correctly completed 90% of the questions
in the tutoring modules showed significant improvement in content mastery. 相似文献
80.
This study of classroom discourse and other data from a physical science course for in-service teachers show the areas of
success and challenge of the participants in making claims supported by justifications. It also shows that the teachers learned
to make scientific claims and were able to make some justifications. Nevertheless, many found the process difficult. Some
of those who performed well in the course did not consider the pedagogy suitable for their own students. The implications
of the findings for elementary teacher education are discussed. 相似文献