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Relation between Achievement Goals and Self-Beliefs of Middle School Students in Writing and Science 总被引：3，自引：0，他引：3
Two studies were conducted to investigate the relationship between achievement goals (task, performance-approach, performance-avoid), motivation constructs, and gender in the areas of middle school writing (N = 497) and science (N = 281). In both studies, task goals were associated positively with self-efficacy, self-concept, and self-efficacy for self-regulation and negatively with apprehension; performance-approach goals were associated positively with self-concept; and performance-avoid goals were associated negatively with self-concept and self-efficacy for self-regulation and positively with apprehension. In writing, performance-approach goals also related positively with self-efficacy, whereas performance-avoid goals related negatively and girls had stronger task goals. Findings related to performance-approach goals suggest that a developmental component may be at work in determining whether these goals serve a facilitative function in fostering motivation. Task goals and performance-approach goals were related, suggesting that they are each grounded in self-regulatory practices that lead to positive outcomes. 相似文献
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The purpose of this study was to explore the personal stories of men who selected careers in science, technology, engineering, or mathematics (STEM) to better understand the ways in which their self‐efficacy beliefs were created and subsequently influenced their academic and career choices. Analysis of 10 narratives revealed that mastery experience was the primary source of the men's self‐efficacy beliefs. These results are compared to those from Zeldin and Pajares' earlier study involving women in STEM careers. For women, social persuasions and vicarious experiences were the primary sources of self‐efficacy beliefs. Together, these findings suggest that different sources are predominant in the creation and development of the self‐efficacy beliefs of men and women who pursue STEM careers. The self‐efficacy beliefs of men in these male‐dominated domains are created primarily as a result of the interpretations they make of their ongoing achievements and successes. Women, on the other hand, rely on relational episodes in their lives to create and buttress the confidence that they can succeed in male‐dominated domains. Findings were consistent with the theoretical tenets of A. Bandura's social cognitive theory. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 1036–1058, 2008 相似文献
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验证收缩骨骼肌细胞葡萄糖转运蛋白4（GLUT4）基因的表达在转录水平上是否受转录抑制子Ⅱ型HDAC5蛋白（简写为HDAC5）的调节。研究运用运动模拟信号5-氨基-4-甲酰胺咪唑核糖核苷酸（AICAR）和HDACs抑制剂SCRIPTAID孵育骨骼肌细胞。用蛋白印迹技术测定HDAC5蛋白表达,定量RT-PCR法检测GLUT4 mRNA表达。与无AICAR的对照组相比,AICAR组骨骼肌细胞内HDAC5减少了29%,并伴随有124% GLUT4 mRNA的增加,但肌细胞内HDAC5的蛋白总量无变化;使用HDACs抑制剂SCRIPTAID刺激骨骼肌细胞能够明显增加核心组蛋白乙酰化水平和上调GLUT4基因的表达。这些结果提示,通过AICAR和SCRIPTAID分别减少或抑制核HDAC5均能上调骨骼肌细胞GLUT4基因的转录,HDAC5可能在转录水平上对肌肉收缩引起的GLUT4基因的表达起着重要的调节作用。 相似文献
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OBJECTIVE: The goal of this research was to study how different groups of child welfare professionals prioritize and use information to make placement decisions following instances of child abuse. METHOD: A total of 90 juvenile court judges and guardians ad litem, Court Appointed Special Advocates (CASA), social workers, and mental health professionals responded to a detailed questionnaire describing four case studies of child physical abuse in which a parent was the perpetrator, the child was either 2 years or 6 years of age, and the abuse was either first time or chronic. Participants rated the impact of specific pieces of information regarding child, family, and system-level characteristics on their decision-making process. RESULTS: Analyses of reactions to these vignettes demonstrate that professional groups use different kinds of information when making decisions about foster care placements. Social workers and mental health providers rely on information about the severity and pattern of abuse and on information about services offered in the past and parental responses to those services. Judges and guardians ad litem rely more heavily on information about the likelihood of a reoccurrence of abuse and the child's ability to recount the abuse, whereas CASA volunteers rely on information about the stability of the family. CONCLUSIONS: Professional group membership, rather than factors such as age or ethnicity of the child or chronicity of abuse, accounts for different patterns of prioritizing and using information when making decisions about whether a child should remain in the home or be placed in foster care. The implications for community-based training and intervention efforts are discussed. 相似文献
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The purpose of this study was to investigate the degree to which A. Bandura's ( 1997 ) hypothesized sources of self‐efficacy predict the science self‐efficacy beliefs of middle school students (N = 319), to replicate previous findings that science self‐efficacy predicts science achievement, and to explore how science self‐efficacy and its antecedents differ by gender. Significant correlations were found between mastery experiences, vicarious experiences, social persuasions, physiological arousal, and self‐efficacy. Only mastery experiences significantly predicted science self‐efficacy. Girls reported stronger science self‐efficacy than did boys. Findings support and extend the theoretical tenets of Bandura's social cognitive theory. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 485–499, 2006 相似文献
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Mentoring is widely advocated as an educational experience for academically talented students because mentors may provide stimulation for academic growth and serve as positive role models for students in areas of career interest. This study examined the experiences of 72 talented teenagers attending a university-based summer mentorship program. Students completed pretest and posttest measures assessing self-concept and perceptions of research aptitude; they also shared their perceptions of their mentoring relationships in written journal entries. Results demonstrated increases in students' perceived research skills and job competence; students reported positive relationships with mentors, particularly when they felt that their mentor spent a great deal of time with them and was approachable, friendly, and engaging. 相似文献
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Shari L. Britner 《科学教学研究杂志》2008,45(8):955-970
The aims of this study were to examine self‐efficacy and other motivation variables among high school science students (n = 502); to determine the degree to which each of the four hypothesized sources of self‐efficacy makes an independent contribution to students' science self‐efficacy beliefs; to examine possible differences between life, physical, and Earth science classes; and to investigate patterns of gender differences that may vary among the fields of science. In Earth science classes, girls earned higher grades and reported stronger science self‐efficacy. In life science classes, girls earned higher grades but did not report stronger self‐efficacy, and did report higher science anxiety. In physical science, there were no gender differences in grades or self‐efficacy, but girls again reported higher levels of science anxiety. For boys across science fields, science self‐efficacy significantly predicted course grades and mastery experiences was the only significant predictor of self‐efficacy. For girls, self‐efficacy was also the strongest predictor of science grade across fields. Mastery experiences significantly predicted self‐efficacy in Earth science for girls, but social persuasions, vicarious experiences, and physiological states were better predictors of science self‐efficacy in life and physical science classes. Results support (Bandura, A., 1997) hypothesized sources of self‐efficacy, previous research findings on self‐efficacy in the domain of science, and validate the suggestion made by Lau and Roeser (2002) to disaggregate data by science field. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 955–970, 2008 相似文献
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