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211.
Elementary and secondary students spend more hours outside of class than in formal school and thus have more time for interaction with everyday science. However, evidence from a large international survey, Program of International Student Assessment (PISA) (OECD 2012), found a negative relationship between number of hours attending after-school science and science assessment scores in many countries, raising questions about why. The secondary analysis of the 2006, 2009, and 2012 PISA surveys found that in most Western countries the longer students attended after-school science programs (in a typical week), the lower their PISA standardized science test score, but the higher their positive attitudes toward future science careers, interest in science, and self-confidence in science. Several potential hypotheses for this relationship are examined and rejected. Further analysis of a causal relationship between frequent attendance in after-school programs and student achievement and attitudes should clearly identify the content of the program so that the analysis could distinguish experiences closely related to regular school curricula from the informal science activities that are not. A new analysis also should include carefully designed longitudinal surveys to test the effectiveness of informal experiences on later life choices in career and study.  相似文献   
212.
This paper addresses the adult educator's responsibility to establish an emotionally safe learning environment. Such a climate enables students to address constructively the fears they bring to the learning event. This empowers the learner to risk change-the goal of adult education. The research of Maslow, Rogers, Knowles, and Freire supports an atmosphere of mutual respect as the key to adult learning. Trainers/Teachers of adults were interviewed to identify the kinds of fears that adults bring to the learning event. This paper explores the attitudes and techniques used by the facilitator to create an atmosphere of respect.  相似文献   
213.
These studies examined attitude toward teaching science (ATTS) using an adaptation of the Bratt Attitude Test (M-BAT); anxiety about teaching science (ANX-TS), as measured by the State-Trait Anxiety Inventory (STAI A-State); and selected demographic variables in preservice elementary teachers for the 1977–1978 and 1978–1979 academic years and a follow-up of those students who completed their student teaching in May 1979. The M-BAT and STAI were administered in September at the beginning of Science 6 (earth science and biology course), in December on the next to last day of Science 6, in May on the next to the last day of Science 5 (physical science), and in May 1979 after student teaching. In the two academic years, both ATTS and ANX-TS became more positive during the sequence Science 6-5. Both changes in ATTS and ANX-TS continued to change in a positive direction after completion of Science 6-5, after student teaching. There were differences in the times that the greatest changes in ATTS and ANX-TS occurred. In both studies, the greatest change in ATTS took place between September and December, during Science 6. The greatest change in ANX-TS, however, took place during Science 5 between December and May in the 1977–1978 study. In the 1978–1979 study, the greatest changes in ANX-TS occurred in Science 6, between September and December. The delayed reduction of ANX-TS in the 1977–1978 study may be explained by differences in teaching patterns. In 1977–1978, two teachers taught only their academic specialty, biology or earth science, to students who switched teachers midsemester. In 1978–1979, the same two instructors taught both biology and earth science to the same students. Correlation coefficients for successive and corresponding administrations of both the M-BAT and STAI suggest these variables are related. Students with more positive ATTS tended to have reduced ANX-TS. Neither the number of high school or college science and math courses completed nor the level of enjoyment of these courses appears to be related to ATTS or ANX-TS for the initial administration of the M-BAT and STAI. Closer examination of data, however, indicates that students with negative ATTS and high ANX-TS were fairly evenly divided in their enjoyment of mathematics, while students with positive ATTS and low ANX-TS enjoyed math in a 3:1 like/dislike ratio. The relationship between both ATTS and ANX-TS and achievement is reasonalbly consistent for Science 6. In Science 5, however, the relationship between ATTS and achievement is inconsistent and there is no indication of a relationship between achievement and ANX-TS.  相似文献   
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A common assumption is that expectancies of reward events in instrumental tasks are established on the basis of Pavlovian conditioning. According to the tandem hypothesis, tested in the four runway investigations reported here employing rats, memories of reward events may serve as the conditioned stimuli eliciting expectancies. In Experiments 1–3, rats were trained under a schedule of partial reward (P), which did not produce increased resistance to extinction, and subsequently shifted to consistent reward (C). According to the tandem hypothesis, the shift to the C schedule should result in increased resistance to extinction if, as hypothesized, under the P schedule the memory of reward, SR, came to elicit the expectancy of nonreward,EN. This hypothesis was confirmed under a variety of conditions. It was shown that increased resistance to extinction could not be attributed to the P schedule alone, to the rats receiving two schedules, P and C, to stimuli other than SR eliciting EN, or to the rats forgetting reward-produced memories when expecting nonreward (Experiment 4). It was shown that the tandem hypothesis could explain the divergent findings obtained in prior studies employing a shift from P to C as well as in the present study.  相似文献   
217.
OBJECTIVE: The purpose of this study is to examine processing of facial emotions in a sample of maltreated children showing high rates of post-traumatic stress disorder (PTSD). Maltreatment during childhood has been associated independently with both atypical processing of emotion and the development of PTSD. However, research has provided little evidence indicating how high rates of PTSD might relate to maltreated children's processing of emotions. METHOD: Participants' reaction time and labeling of emotions were measured using a morphed facial emotion identification task. Participants included a diverse sample of maltreated children with and without PTSD and controls ranging in age from 8 to 15 years. Maltreated children had been removed from their homes and placed in state custody following experiences of maltreatment. Diagnoses of PTSD and other disorders were determined through combination of parent, child, and teacher reports. RESULTS: Maltreated children displayed faster reaction times than controls when labeling emotional facial expressions, and this result was most pronounced for fearful faces. Relative to children who were not maltreated, maltreated children both with and without PTSD showed enhanced response times when identifying fearful faces. There was no group difference in labeling of emotions when identifying different facial emotions. CONCLUSIONS: Maltreated children show heightened ability to identify fearful faces, evidenced by faster reaction times relative to controls. This association between maltreatment and atypical processing of emotion is independent of PTSD diagnosis.  相似文献   
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The purpose of the study was to examine the relationship of classroom environment to attitudes toward science and achievement in science among tenth grade biology students. An attitude instrument was administered at three times during the school year to measure student attitudes toward science and the classroom environment. The classroom environment measures examined six areas: emotional climate of the science classroom, science curriculum, physical environment of the science classroom, science teacher, other students in the science classroom, and friends attitudes toward science. Student achievement in science was measured by teacher reported semester grades. The results of the study indicated: (1) student attitudes toward the classroom environment predicted between 56 to 61% of the variance in attitudes toward science, (2) student attitudes toward the classroom environment predicted between 5 to 14% of the variance in achievement in science, (3) student attitudes toward science and attitudes toward the classroom environment predicted between 8 and 18% of the variance in achievement in science.  相似文献   
220.
There are many subtle but extremely important differences between grouping students and tracking students for purposes of designing appropriate instructional interventions. Unfortunately, in many inner-city urban settings, the policy of grouping students eventually becomes a policy ofde facto tracking of students. While grouping students seems to be an educationally justifiable policy in many school situations, tracking students raises serious concerns with regard to its educational value, social desirability, and complicity with the legal notions of due process and equal protection. This study examines the use of a specific form ofshort-term grouping of students that is based on an information-referenced criterion for selection. Using a large sample of ninth- and eleventh-grade students, an information-referenced grouping procedure was designed for the areas of language arts and mathematics. The study finds that grouping selections, using an information-referenced criterion, are strongly associated with teachers perceptions of these students' actual educational and information needs. In addition, the information-referenced grouping design provides important specific educational feedback to both students and teachers to help low-attaining students move to mainstream classes. Finally, many of the due process concerns raised by educational researchers with regard to abuses and shortcomings of presently used ability or standardized test-driven grouping efforts are addressed.  相似文献   
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