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Twenty acquisition curves were obtained from each of 8 pigeons in a free-operant choice procedure. Every condition began with a phase in which two response keys had equal probabilities of reinforcement, and, as a result, subjects’ responses were divided fairly evenly between the two keys. This was followed by a phase in which one key had a higher probability of reinforcement than the other, and the development of preference was observed. In all but a few cases, response proportions increased for the key with the higher probability of reinforcement. In most conditions, the two probabilities differed by .06, but the actual probabilities varied (from .16 and .10 in one condition to .07 and .01 in another). Development of preference for the key with the higher probability of reinforcement was slower when the ratio of the two reinforcement probabilities was small (.16/.10) than when it was large (.07/.01). This finding is inconsistent with the predictions of several different quantitative models of acquisition, including the kinetic model (Myerson & Miezin, 1980) and the ratio-invariance model (Horner & Staddon, 1987). However, the finding is consistent with a hypothesis based on Weber’s law, which states that the two alternatives are more discriminable when the ratio of their reinforcement probabilities is larger, and, as a result, the acquisition of preference is faster. 相似文献
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Theresa Ambo 《International journal of qualitative studies in education》2018,31(3):215-222
AbstractLiterature on American Indian student support in postsecondary education illustrates the importance of relationality in creating a positive college experience for Native students. That said, much of the literature examining ‘care relationships’ in Indian education focuses on student outcomes, with less attention given to the experiences of practitioners. Thus, the purpose of this paper is twofold. First, the author examines where and how American Indian higher education practitioners learned principles of communal care for supporting Indigenous students in non-Native postsecondary institutions. Second, she explores how these principles act as homesteads of mutuality to love, transform, resist, and enact refusal within the academy. She draws upon the literature on American Indian student support in postsecondary education, which illustrates the importance of relationality in creating a positive college experience for Native students. 相似文献
4.
Theresa J. K. Drinka 《Educational gerontology》2013,39(6):433-449
Each of the fields of geriatrics and interdisciplinary practice intensifies the usefulness and effectiveness of the other. Combining geriatrics and interdisciplinary practice also magnifies the complexity of two singularly complex fields. However, the subtle reasons for their complexity may escape the understanding of clinicians, educators, policy makers, and administrators. Attempting to treat older patients who have complex problems while ignoring common principles of geriatrics and teamwork can cause a kind of double jeopardy. It can potentially harm the patient and decrease the provider's sense of mastery. Training either students or health care providers to appreciate the interactions and the complexities of these two fields could produce a double indemnity for the health care system and for older persons who need health care. It requires recognizing subtle factors like the barrier of presumed knowledge, the interpretation of the meaning of function, frailty, the lure of medical technology, professional hierarchies, diverse views of disease, and the myth of insufficient evidence. 相似文献
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Kyle S. Wiley Molly M. Fox Theresa E. Gildner Zaneta M. Thayer 《Child development》2023,94(5):1356-1367
Infant social–emotional development may be impacted by the COVID-19 pandemic. This study investigated associations between maternal pre- and postnatal pandemic-related concerns and social–emotional developmental risk. Data, collected in 2020–2021, came from 220 mothers (87% white, 6% Hispanic, 1% Black, 3% Asian, 1% American Indian, Mage = 32.46 years), and infants (53.18% male, Mage = 12.98 months) in the United States. Maternal postnatal pandemic-related concerns were associated with total risk scores (B = 6.09, p-value <.001) and offspring risk of scoring positive for problems related to inflexibility (B = 4.07, p-value = .006). The total score association was moderated by self-reported social support. Infants may be detrimentally impacted by the pandemic via maternal pandemic-related concerns. Maternal social support may buffer infants. 相似文献
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Theresa A. Thorkildsen 《Child development》1991,62(4):852-862
Conceptions of fair educational practices develop differently for testing and learning situations. After about age 8, children judged peer tutoring to be an unfair practice during a test. (Most 6–8-year-olds judged it fair). Yet, peer tutoring was seen as the most fair way to help students learn until at least age 17. In addition, 4 levels of conceptions of fair testing practices were found. Adult-like conceptions of fair testing practices emerged at about age 11, which contrasts with about 18 for conceptions of fair learning practices. Conceptions of fair testing practices parallel the development of the concepts of ability and effort as factors limiting immediate performance; whereas conceptions of fair learning practices parallel the development of concepts concerning the long-term acquisition of intelligence. These findings support the conclusion that children's understanding of different types of situations is reflected in their conceptions of social justice. 相似文献
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Theresa Alviar-Martin Li-Ching Ho 《Teaching and Teacher Education》2011,27(1):127-135
This qualitative study attends to six Singaporean teachers’ experiences of diversity and understanding of multicultural education to illuminate the influence of national policies and narratives on teachers’ perceptions and practice. These cases illustrate that, beyond reflection on identity and diversity, there is a need for teachers to examine how political, cultural, and economic principles have shaped their understanding of diversity and multicultural education. The authors discuss findings in light of socio-political constraints faced by Singapore teachers and forward implications for teacher education. 相似文献
9.
Theresa Gurl 《Educational studies》2011,37(5):523-528
This article describes a model for incorporating lesson study into the student teaching placement and reports on the success of the implementation of such a model with student teachers and their cooperating teachers (CTs). Student teachers had the opportunity to discuss many important ideas with each other and their CTs, including “big ideas” of mathematics, and the anticipation of student questions and possible responses. Student teachers also had a built‐in opportunity for peer observation on a regular basis and the opportunity to collaborate with their peers. Certain important aspects of lesson study were not present in this implementation: the teachers involved did not discuss the gaps in their own knowledge with the goal of improving their own mathematical understanding, they did not refer outside sources for ideas for the lessons, and they did not have an overarching affective goal for students. Suggestions are made for teacher preparation in light of these findings. 相似文献
10.
This study reports the results of a needs analysis of literacy programs for a library system serving three rural and suburban
counties. It examines the computing skills and needs of literacy tutors as well as native-speaking and English language learner
(ELL) literacy tutees enrolled in the programs. Paper surveys were mailed to tutors, who were asked to complete a survey themselves
and assist their tutees to complete one. Results of this study offer insights into the incorporation of digital literacy into
traditional adult literacy programs focusing on the needs, wants, and support systems of user groups. 相似文献