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111.
112.
Two-year colleges are an important part of the higher education system in the United States but there are concerns as to how attendance at these institutions affects educational attainment and labor market outcomes. This paper uses data from a nationally representative survey to examine the impact of students beginning their college career at a two-year college instead of a four-year college. Treatment effects are estimated using both standard regression techniques as well as propensity score matching. As these estimates may be contaminated because of selection on unobservable characteristics this paper will also employ a number of sensitivity analyses to consider the potential bias. The results show large negative impacts on both educational attainment and labor market outcomes for men and women who begin at a two-year college, even for those students who expect to complete a bachelor's degree. The evidence from the sensitivity analyses suggest that to eliminate these large effects there would need to be substantial, and arguably implausible, selection on unobservable characteristics.  相似文献   
113.
Among the sciences, the practice of geology is especially visual. To assess the role of spatial ability in learning geology, we designed an experiment using: (1) web‐based versions of spatial visualization tests, (2) a geospatial test, and (3) multimedia instructional modules built around QuickTime Virtual Reality movies. Students in control and experimental sections were administered measures of spatial orientation and visualization, as well as a content‐based geospatial examination. All subjects improved significantly in their scores on spatial visualization and the geospatial examination. There was no change in their scores on spatial orientation. A three‐way analysis of variance, with the geospatial examination as the dependent variable, revealed significant main effects favoring the experimental group and a significant interaction between treatment and gender. These results demonstrate that spatial ability can be improved through instruction, that learning of geological content will improve as a result, and that differences in performance between the genders can be eliminated.  相似文献   
114.
Differential usage of the five bases of power as conceptualized by French and Raven (1968) were examined to determine which base(s) of power mediated the Management Communication Style (MCS) of a supervisor. In addition, the supervisor's communication of each type of power was examined for relationships with employee satisfaction. Two samples are employed, one a group of 250 public‐school teachers and the other a group of 171 managers representing banking, service industries, and a product‐based organization. Results indicate that both samples associated the communication of coercive power with a “boss‐centered,” tell‐type MCS and negative job satisfaction. Both samples responded positively to increased use of referent and expert power. Reward power seems to have little positive impact for either sample. Lastly, legitimate power had a negative impact on MCS for the management sample.  相似文献   
115.
A validation test of a message elaboration measure   总被引:1,自引:0,他引:1  
This report is on the development and testing of a message elaboration measure. The reliability of the message elaboration scale is high μ = .86 to .94 over several studies. Confirmatory factor analytic procedures support the structure of the scale. Patterns of correlations with existing measures of cognitive processes also support the validity of the message elaboration measure.  相似文献   
116.
WHILE TEACHERS are often the ones who select the objects, events and activities that serve as potential reinforcers in their contingency management systems, research indicates that teachers are not always accurate in their selection of reinforcers that are motivating to their students. This study examined the reinforcement preferences of 110 secondary students with disabilities. Respondents rated 90 potential reinforcers using a three‐point Likert scale. Results indicated that while student preferences represent a range of reinforcers within existing reinforcement hierarchies, the sample group tended to prefer less intrusive higher level reinforcers. Implications of the findings and suggestions for future research are discussed.  相似文献   
117.
This paper focuses on the creation of the IAIMS workstation in the context of the outcomes of a year-long IAIMS strategic planning process at the Johns Hopkins Medical Institutions (JHMI). These outcomes include a long-term institutional vision for a functional knowledge management environment, a JHMI IAIMS model, a strategic plan, and two model prototypes. The functional requirements and specific implementation strategies for the IAIMS workstation, the prototype for managing the knowledge base of the published biomedical literature, are discussed in detail.  相似文献   
118.
The use of learning support assistants in schools has become increasingly common in England, partly as a result of government support for this strategy. One suggested advantage of the deployment of learning support assistants is to provide additional support to low achieving pupils. However, so far research on the effects of this strategy is very limited. In this study the effect of using trained learning support assistants to help pupils underachieving in mathematics is examined using a quasi-experimental design whereby pupils receiving support were matched to those not receiving support on prior achievement and pupil background factors.  相似文献   
119.
The highest rate of accidents and injuries in British industries has been reported by the construction industry during the past decade. Since then stakeholders have recognised that a possible solution would be to inculcate a good attitude towards health and safety risk management in undergraduate civil engineering students and construction professionals. Consequently, the four accreditation bodies that accredit construction degrees have improved coverage of health and safety risk management. The key issue has now shifted to ensure that Higher Education Centres deliver these requirements. This paper demonstrates innovative assessment methods that have been used to inculcate a safety conscious attitude into undergraduate civil engineering students, and to improve their knowledge of health and safety risk management. Surveys were administered to the students before and after they were subjected to innovative assessment techniques over two semesters in the construction management units. The analyses of the results of the surveys are provided to demonstrate the degree of improvement in the attitude of the students towards, and their knowledge of, health and safety risk management.  相似文献   
120.
We studied 52 parent–child dyads reading an alphabet book to examine the nature of children's miscues and parents' feedback, and whether miscues and feedback were related to each other and to preliteracy skills. Letter knowledge, phonological awareness, and expressive vocabulary were assessed in 5-year-old nonreaders who were also audiotaped reading an alphabet book at home with their parent. Results indicate that after controlling for vocabulary, children with higher phonological awareness more often labeled objects with a name beginning with the page's target letter. Parents provided substantial sustaining feedback after miscues, as though using alphabet books as a way of fostering their child's literacy. Findings highlight the need to consider both the child's skill-base and parent–child interactions to understand the role of alphabet books in literacy development.  相似文献   
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