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The present study examined the perceptions of parents of children with attention deficit disorder with hyperactivity (ADD/H) regarding their family environment and depression in comparison with a clinical and a nondisabled control group. Parents of children with ADD/H perceived their family environment as less supportive and more stressful than did either the clinical or the nondisabled controls. Specifically, ADD/H parents viewed their families as having lower levels of interpersonal relationships than did either of the control groups. Ratings of depression for each of the parent groups indicated a greater frequency of depressive symptomatology among the parents of children with ADD/H. In addition, more parents of ADD/H children were separated or divorced. Correlation coefficients computed for the entire sample suggest differences between mothers' and fathers' depression and differences in their perceptions of the family. Recommendations are made for future research as well as the development of treatment programs to incorporate work with the parents of children with ADD/H.  相似文献   
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The present research consisted of a comprehensive evaluation of a hypertext model for teaching process writing at the junior high and high school level. Interests were to determine how two teachers and three different age groups of students used and reacted to the model, specifically, its embedded design features of model stories, note cards, idea buttons, mini-lessons, branching buttons, and cut-and-paste-tools. Results showed applications of the embedded features to vary based on teacher attitudes, feature attributes (e.g., ease of use and appeal), and student characteristics. Older students made more usage of many of the features, but were less positive about the hypertext model given their greater involvement with completing writing assignments rather than with exploring new forms of writing. The implications of the results are discussed regarding the instructional design and classroom implementation of new technologies for teaching process writing strategies.This study was conducted as a doctoral dissertation completed by the first author at the University of Memphis under the supervision of the second and third authors.  相似文献   
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This article develops and tests the argument that leadership behavior in organizations can best be understood within a contingency technology-environment model. The major premise of this model is that one of the most influential intervening factors between organizational performance and leadership behavior is either the technology that the organization utilizes or the environment with which the organization interacts. Building upon this premise and the work of Kuhn (1970), four hypotheses are tested concerning the relationship between the effectiveness of natural science and social science departments in American universities using factor analysis. The data supports the conclusion that differential leadership styles are predictable in different scientific fields.  相似文献   
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The positive impact of undergraduate research experiences on students’ post-secondary success is well-documented. However, these conclusions are drawn from undergraduate students who already participate; very little research has explored the pathways by which students enter these experiences. Using data from a multi-institutional survey, we examined students’ reasons for participating and differences across institutions and demographic groups. Overall, students cited social and experiential reasons as key motivators for participation and a perceived lack of research readiness as a key barrier. Differences were also found across academic year. Implications from this study address issues of access, preparation, and institutional policies around undergraduate research.  相似文献   
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