The reliability of linear position transducer,force plate and combined measurement of explosive power-time variables during a loaded jump squat in elite athletes

The purpose of this study was to determine the between day reliability of power-time measures calculated with data collected using the linear position transducer or the force plate independently, or a combination of the two technologies. Twenty-five male rugby union players performed three jump squats on two occasions one week apart. Ground reaction forces were measured via a force plate and position data were collected using a linear position transducer. From these data, a number of power-time variables were calculated for each method. The force plate, linear position transducer and a combined method were all found to be a reliable means of measuring peak power (ICC = 0.87‐0.95, CV = 3.4%‐8.0%). The absolute consistency of power-time measures varied between methods (CV = 8.0%‐53.4%). Relative consistency of power-time measures was generally comparable between methods and measures, and for many variables was at an acceptable level (ICC = 0.77‐0.94). Although a number of time-dependent power variables can be reliably calculated from data acquired from the three methods investigated, the reliability of a number of these measures is below that which is acceptable for use in research and for practical applications.     

Beliefs About Thought Probability: Evidence for Persistent Errors in Mindreading and Links to Executive Control

Four‐ to 10‐year‐olds' and adults' (N = 263) ability to inhibit privileged knowledge and simulate a naïve perspective were examined. Participants viewed pictures that were then occluded aside from a small ambiguous part. They offered suggestions for how a naïve person might interpret the hidden pictures, as well as rated the probability that a naïve person would think of several different pictures (with one picture being the actual item). Results indicated a significant increase between ages 4 and 7 years in attributing novel interpretations; however, all age groups overestimated the probability that a naïve person could guess the actual pictures. Individual differences in working memory and inhibitory control predicted participants' thought suggestions as well as aspects of their probability judgments.     

Revisiting the Two Faces of Child Care Quality: Structure and Process

While child care quality has been examined in numerous studies, the definition of quality and specifically, the concepts of structural and process quality, have not been adequately explored. In this qualitative analysis of the constructs of process and structural quality, a content analysis of the Early Childhood Environment Rating Scale-Revised (ECERS-R), a commonly used measure of process quality, was conducted to investigate its use as a measure of process quality. Through constant comparative analysis of the ECERS-R at the indicator level, definitions of structure and process were formulated. Results show that over half of the indicators of the ECERS-R are measuring structural quality rather than process quality. Further examination of quality as a dynamic exchange between individuals and context is needed to advance research in the area of early childhood program quality.     

报复

[1]就在此时此刻,我知道该停下来了。这么高的目标,我真不知道该怎样去实现,但很清楚这已经是必然的了。起初只不过是想报复一下对方,现在却已经发展得无法控制。对我们两个人来说,这7年的生活犹如地狱一般,而我们幼小的女儿也被卷在里面。     

Causes of educational segregation in Sweden – school choice or residential segregation

The aims of the study were to examine changes in school segregation across different types of municipalities between 1998 and 2011 in Sweden, and to explore the extent to which these changes are the consequences of school choice. Multilevel models were applied to register data using a counterfactual approach. The results showed that school segregation with respect to migration background and educational achievement had increased over time, while social segregation remained rather constant. The degree of school segregation varied largely across different municipality types, and it was concluded that school choice was a determinant of school segregation. The findings have strong policy implications and are discussed in relation to the recent educational reforms in Sweden.     

Including Diagnostic Training in Counseling Curricula: Implications for Professional Identity Development

During the last decade, diagnostic training has been increasingly assimilated into counseling curricula; however, the consequences for counselor identity of including this training have seldom been critically examined. The author argues that this diagnostic trend has major implications for the formation of individual counselor identity and for the counseling profession. He discusses associated risks and suggests ways of presenting diagnostic topics.     

An Analysis of the Relative Influences of Fahrenheit 9/11 and Presidential Debate Viewing on Shifting Confidence in President George W. Bush

This study analyzes the influence of Michael Moore's Fahrenheit 9/11 in coordination with presidential debate viewing on the outcome variable of confidence in George W. Bush's policy positions. In addition, the combined influence of these competing persuasive appeals is assessed across three political ideology groups: liberals, moderates, and conservatives. There is a statistically significant experimental stimulus-by-political ideology interaction, with Bush making substantial gains among political moderates who viewed Moore's film prior to a Bush-Kerry debate. The study also reveals similar patterns of influence for liberals and conservatives.     

FACULTY DEVELOPMENT ACTIVITIES IN THE ILLINOIS COMMUNITY COLLEGE SYSTEM

In a time of declining resources and restricted faculty mobility, faculty mobility, faculty development has become increasingly important. This study addressed faculty development activities, their evaluation, and their perceived impact on the improvement of instruction in the community colleges of Illinois. Data gathered through the use of a questionnaire mailed to the chief academic officer of each of the state's community colleges were analyzed and interpreted. It was found that a wide variety of activities — orientation, inservice, professional, individual, and group — are available to faculty members. Orientation activities were viewed as being moderately useful for the improvement of instruction. Respondents saw professional activities as somewhat more useful than inservice activities. With some qualifications, group activities were perceived as being more useful than individual activities. Evaluation efforts, for the most part, are as yet sporadic and unsophisticated.

The results of this study suggest that perhaps the traditional inservice‐type activities may not be the “one best way” to deliver quality faculty development aimed at the improvement of instruction. Faculty‐development planners may want to examine more closely the needs of their faculty in relation to the activities available. In addition to continuing the most useful of the group and inservice activities, attention should be directed toward those individual and professional activities not frequently offered but rated as highly effective in improving instruction.