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排序方式: 共有316条查询结果,搜索用时 15 毫秒
1.
Joel Blanchard Samuel Blais Philippe Chetaille Michele Bisson François P. Counil Thelma H. Girard 《Journal of sports sciences》2019,37(11):1265-1269
The purpose of this study was to identify which averaging methods most accurately measures peak cardiorespiratory fitness (CRF) parameters [peak O2 uptake (VO2), peak O2pulse and peak respiratory exchange ratio (RER)] in a sample of healthy children and adolescents. In this cross-sectional multicenter study, we recruited 278 healthy children aged 12–17 years. We compared the mean peak value of three CRF parameters using the recommended averaging methods (30-second block average) with alternative averaging methods such as moving averages or shorter smoothing periods. We also assessed averaging methods for accuracy by individually reviewing breath-by-breath scatter plots. The 30-second block average method resulted in a lower mean peak VO2 and in an increased proportion of underestimated peak values. Using a 30-second moving average significantly increased mean peak values which increased accuracy. Similar results were found for peak RER and peak O2pulse. In conclusion, the currently recommended averaging method (30-second block average) increased the risk of misinterpretation of peak CRF values in children. Using a moving average approach decreased misinterpretation and increased accuracy. 相似文献
2.
Educational Psychology Review - Previous simulation studies of randomization tests applied in single-case educational intervention research contexts have typically focused on A-to-B phase changes... 相似文献
3.
Shu-Sheng?LinEmail author Joel?J.?Mintzes 《International Journal of Science and Mathematics Education》2010,8(6):993-1017
This article describes an effort to explore and enhance argumentation skills of Taiwanese grade 6 students through instruction
in socioscientific issues. An experienced elementary school teacher was given 8 months of personalized instruction on argumentation
skills and socioscientific issues, then subsequently implemented a 17-h classroom unit on the establishment of Ma-Guo National
Park. His students learned to establish claims and warrants, construct counterarguments, offer supportive arguments, and provide
evidence for each one. Data consisted of student responses to questionnaires and individual follow-up interviews. A multiple
regression analysis revealed that success in learning argumentation skills was not substantially related to pre-instruction
argumentation skills, but significantly related to the student ability levels. High-ability students were significantly better
than low-ability students at generating complete arguments. Most students elaborated their arguments, and more high-ability
students offered rebuttals after instruction. However, even these high achievers did not completely understand the meaning
of evidence and often misused supplementary warrants as evidence. 相似文献
4.
Childcare Food Handling Employees’ Perceived Barriers and Motivators to Follow Food Safety Practices
Each year millions of children are enrolled in center-based childcare. Childcare employees are tasked with handling over half the children’s weekly meals. Proper food handling practices are crucial in mitigating this high-risk population’s risk of foodborne illness. The purpose of this study was to identify childcare food handling employees’ (n?=?278) perceived barriers and motivators to follow recommended food safety practices. Six important barriers and 14 key motivators to following recommended food safety practices were identified. Important barriers pertained to time restraints, workloads, and lack of understanding of the importance of following proper food safety practices. Key motivators were focused on children’s safety, available supplies, communication, and food safety training/information. Employee and facility characteristics were shown to influence perceived importance of barriers and motivators to following food safety practices. Childcare directors should review scheduling and job duties of employees as the majority of identified barriers focused on “work pace” and “time restraints.” Directors should also attempt to increase food safety communication through practical situational training, written food safety policies, and use of food safety signage to increase understanding of the importance of proper food safety practices. Ensuring proper supplies are available is necessary. 相似文献
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Joel A. Lane 《Journal of College Counseling》2016,19(3):231-245
This study examined the relationships among attachment, psychological well‐being (PWB), life satisfaction, and concerns about the transition out of college among a sample of college seniors. A path analysis was conducted predicting that PWB and life satisfaction would mediate the relationships between attachment and 3 types of graduation transition concerns: career, change and loss, and support. Significant mediation effects affecting career concerns and change and loss concerns were discovered. Implications for college counseling are discussed. 相似文献
8.
Maria Malikiosi-Loizos W. O. Mehnert G. G. Work Joel Gold 《International journal for the advancement of counseling》1981,4(2):119-129
The present study investigated the effects of didactic and experiential supervision procedures on the judged counseling effectiveness of high and low cognitive complexity counselor trainees. Subjects in the two supervision groups (N=16) were trained in attending, questioning, and reflection of feeling over three sessions. Training consisted of exposure to videotaped counseling models, discussion of the model's behavior with the supervisor, videotaped role playing of therapy, and discussion of the therapy with the supervisor. Training was exactly the same for both groups except for supervision. A control group (N=8) did not receive any training. All subjects, including controls, were pre- and post-tested for counseling effectiveness as measured by judged tape ratings on the 25-item Counselor Effectiveness Scale and four scales designed to assess affective, exploratory, listening, and honest labeling responses.High complex subjects responsed more favorably to the didactic supervision significantly outperforming both the high complex controls and the low complex didactic subjects on four of the five dependent measures, whereas high and low complex subjects did not respond differentially to the experiential supervision. The results were discussed in terms of fitting the complexity of the students to the supervision approach in selecting students for counseling programs.This paper was presented at the International Round Table for the Advancement of Counselling, Thessaloniki, Greece, April 1980, and was based partly on the senior author's doctoral disser tation (University of Maine, 1978). 相似文献
9.
Joel West 《Research Policy》2003,32(7):1259-1285
Computer platforms provide an integrated architecture of hardware and software standards as a basis for developing complementary assets. The most successful platforms were owned by proprietary sponsors that controlled platform evolution and appropriated associated rewards.Responding to the Internet and open source systems, three traditional vendors of proprietary platforms experimented with hybrid strategies which attempted to combine the advantages of open source software while retaining control and differentiation. Such hybrid standards strategies reflect the competing imperatives for adoption and appropriability, and suggest the conditions under which such strategies may be preferable to either the purely open or purely proprietary alternatives. 相似文献
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