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1.
Risk behavior was investigated among 1,053 Danish adolescents aged 12–20. Driving a car while intoxicated was rare even among the oldest adolescents, but riding a bicycle while intoxicated was reported by the majority of adolescents aged 14–20. Driving a car at high speeds was widespread among the oldest adolescents (aged 18–20), but still lower than rates reported for same-age American adolescents. Rates of sex without contraception were higher than expected, in spite of early and extensive sex education, while rates of illegal drug use other than marijuana were extremely low. Participation in risk behavior was analyzed in relation to sensation seeking, city size, and various family variables. Results are discussed in the context of the theory of broad and narrow socialization, in which a cultural and multidimensional understanding of socialization is emphasized. 相似文献
2.
The study investigated the effects of participation in the activities of Science-A Process Approach (SAPA) on the oral communication skills of disadvantaged kindergarten children. Experimental-control group, pretest-posttest research design was employed. The investigator designed the Test of Oral Communication Skills (TOCS) to measure students' oral communication skills. Two experimental groups (one morning and one afternoon, N = 52) and two control groups (one morning and one afternoon, N = 48) were randomly assigned from two kindergarten classrooms (morning and afternoon classes in each) in an inner-city school in Columbus, Ohio. The investigator provided the science instruction to all students. Experimental subjects received 22 half-hour lessons from exercises a through k of Part A, SAPA. Control subjects received 22 lessons from Springboards to Science, a teacher demonstration, class discussion type of kindergarten curricuoum used in the school system. The treatment period spanned 12 academic weeks. Analysis of variance of TOCS pretest scores showed no significant differences among any of the means of the four groups. Analysis of covariance of TOCS posttest scores revealed differences significant at .05 or beyond in the mean scores of the experimental groups and control groups for total oral and total receiving skills and for six of the eight subskills measured by TOCS. Application of the Tukey (b) test revealed that experimental group mean scores exceeded control group mean scores in every TOCS skill and subskill area and that in total oral transmitting subskills both experimental group mean scores were significantly greater at .05 level or beyond than corresponding mean scores for both control groups. Within the parameters of this study, it may be concluded that when the activities and teaching strategies of SAPA curriculum are presented to disadvantaged kindergarten children, their oral communication skills, especially the transmitting (speaking) skills, are clearly enhanced. 相似文献
3.
Nancy A. Marlin 《Learning & behavior》1981,9(4):519-523
Rats were given tone-footshock pairings with a 0-, 10-, or 30-sec trace interval between tone offset and shock onset. Half the rats within each trace interval were tested for their conditioned fear of the tone through a lick suppression procedure; the remaining rats were evaluated for their fear of the background or contextual cues through their avoidance of the compartment in which conditioning had occurred. Less conditioning was observed to the tone with increasing trace intervals. However, conditioned fear of the context increased with increases in the trace duration. The ability of the more predictive stimulus, the tone, to overshadow the contextual cues was determined by the tone’s temporal contiguity with the footshock. The need to incorporate temporal parameters within current theories of conditioning is discussed. 相似文献
4.
Signe Hvid Thingstrup Lene S. K. Schmidt Randi Andersen 《Educational Action Research》2018,26(3):354-364
In 2014, the Danish primary school system went through a major reform. One main change is the greater participation of pedagogues in school. This is a dramatic change both for teachers and for pedagogues, a distinct profession, traditionally working outside school and representing a creative and social approach to learning and wellbeing. This article examines how teachers and pedagogues in an action research project negotiate their new common work and which understandings of good pedagogical practice these negotiations express. The article shows that international educational rationales about learnification and attainment that are found in the Danish reform, affect the professionals’ understandings of professionalism and educational practices, and that this marginalises some traditional pedagogical practices. However, the article also shows that both pedagogues and teachers critique dominant educational policy rationales and explore what space for action exists in the reform. 相似文献
5.
The paper investigates the relationship between assessment and learning through an empirical study of apprenticeship training. The paper suggests that well‐established modes of learning, which facilitate meaningful assessment in apprenticeship training, present an “antidote” to a traditional emphasis on assessment as selection and control. In contrast to rejection of apprenticeship modes of assessment as being inappropriate and obsolete at the present time, the paper suggests that the concept of apprenticeship assessment can be seen as a highly attractive and effective alternative to current assessment practices in both schools and workplaces. Taking a situated and relational perspective on knowledge and learning, we argue that assessment practices should focus on contextually‐anchored reviews of the core competencies of the person. This contextual assessment contrasts with an emphasis on assessment as essentially controlling and selecting students for further education and, on the other hand, with assessment as a process of self‐monitoring and self‐reflection. 相似文献
6.
Torill Tverborgvik Lene Björk Clausen Brian Larsen Thorsted Sigurd Mikkelsen Elsebeth Lynge 《Scandinavian Journal of Educational Research》2013,57(5):544-560
In light of the Danish government's goal of 95% of every cohort achieving higher education by 2015, we investigate educational mobility in Denmark. Following 800,000 Danes and their parents, we found that children of parents with only basic education had a three-times-higher risk of achieving only basic education, compared with the children of well-educated parents. These social differences in educational achievements were found despite free education and generous governmental grants and loans. We found general upgrading of a population's educational level to be a tardy process which implies breaking the bonds of negative social inheritance to increase intergenerational social mobility in the society; thus, the government's 95% goal is unlikely to be achieved by 2015. 相似文献
7.
Five experiments investigated the reliability of, and a possible explanation for, the preference for signaled shock (PSS) phenomenon, in which animals show a preference for signaled over unsignaled, unmodifiable shock. Experiment 1 demonstrated the generality of our previous PSS shuttlebox data. In an attempt to explain some of the studies in which a failure to obtain a PSS has been reported, Experiments 2 and 3 found that under certain conditions the PSS effect could be overridden by an innate preference for dark; however, the series of experiments in toto speaks clearly for the robustness of the phenomenon. Consistent with the recently proposed “crossover consequence hypothesis,” Experiments also revealed that shuttling behavior during manifestations of PSS is not randomly distributed in time. However, Experiments 4 and 5 found that PSS could not generally be attributed to an interaction between the acquired aversiveness of the signal and the spatially asymmetrical probability of shuttling being punished, as proposed by this hypothesis. 相似文献
8.
A particular class of routing problems associated with demand actuated transportation systems requires the repeated regeneration of minimum or optimum routes as a part of the more general routing problem. The generation or regeneration of routes by methods other than classical minimum route solutions is discussed. A general system model for processing demands in a demand actuated transportation or routing system is presented and discussed. 相似文献
9.
Nancy A. Marlin 《Learning & behavior》1983,11(3):290-294
Three experiments investigated the question of whether a spatial stimulus, a context, could function as S1 in a second-order conditioning procedure. In each experiment, rat subjects were presented with S1-US pairings by being given footshocks in one of two contexts. Forty-eight hours later, the experimental groups received S2-S1 pairings, during which a tone was presented in the training context. As measured by a lick-suppression test administered in a third context, rats were more fearful of the tone if it occurred in the context in which they had previously been shocked. The training context in each experiment apparently served to establish second-order fear conditioning to the tone. 相似文献
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