Object Properties and Object Kind: Twenty-One-Month-Old Infants' Extension of Novel Adjectives   总被引：2，自引：1，他引：1  

Sandra R. Waxman  Dana B. Markow 《Child development》1998,69(5):1313-1329

Three experiments examined the conditions under which infants acquiring English succeed in mapping novel adjectives, applied ostensively to individual objects, to other objects with the same property (color or texture). Twenty-one-month-old infants were introduced to a target (e.g., a yellow object) and asked to choose between (1) a matching test object (e.g., a different yellow object) and (2) a contrasting test object (e.g., a green object). Infants hearing the target labeled with novel adjectives were more likely than those hearing no novel words to choose the matching test object. Infants also revealed an emerging distinction between novel adjectives and nouns. Finally, infants' expectation regarding the extension of adjectives appears to unfold within the support of a familiar basic-level category. Infants extended novel adjectives to the matching test object when all objects were all drawn from the same basic level category; they failed to do so when the objects were drawn from different basic level categories.  相似文献   

Estimating the Impact of Instructional Practices on Student Achievement in Science     

Clare E. Von Secker  Robert W. Lissitz 《科学教学研究杂志》1999,36(10):1110-1126

This study used a hierarchical linear model (HLM) to estimate direct and indirect effects of instructional practices recommended by the National Science Education Standards on individual achievement. Three pedagogical reforms—namely, providing more opportunities for laboratory inquiry, increasing emphasis on critical thinking, and reducing the amount of teacher‐centered instruction—were expected to account for variability in school mean achievement and explain why gender, racial‐ethnic status, and socioeconomic status have more influence on achievement of students in some schools than in others. Results suggest that whereas the instructional policies recommended by the authors of the Standards may be associated with higher achievement overall, they are equally likely to have the unintended consequence of contributing to greater achievement gaps among students with different demographic profiles. Theoretical expectations about the impact of instructional practices on academic excellence and equity require further evaluation. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 1110–1126, 1999  相似文献   

Die Rezeption der aristotelischen politischen Philosophie bei Marsilius von Padua. Eine Untersuchung zur ersten Diktion des Defensor pacis     

Danaë Simmermacher 《Al-Masaq: Islam & the Medieval Mediterranean》2014,26(1):108-110

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Tales of the unexpected: coping among female collegiate volleyball players     

Holt NL  Berg KJ  Tamminen KA 《Research quarterly for exercise and sport》2007,78(2):117-132

The purpose of this study was to examine patterns of appraisal, coping, and coping effectiveness in sport. Ten players from a collegiate female volleyball team were interviewed on two occasions, first in the week before a provincial final playoff tournament and in the week following the tournament. Data were transcribed verbatim and subjected to content and idiographic analyses. Athletes generally did not predict or anticipate the stressors they actually experienced during the tournament. Subjective appraisals of effective coping were associated with consistency between proactive and actual coping attempts. Reported effective coping was associated with the attainment of personal performance goals and use of cognitive, behavioral, and emotional coping strategies in the absence of behavioral avoidance. Reported ineffective and partially effective coping was associated with not attaining personal performance goals, and the use of cognitive coping strategies with behavioral avoidance. Finally, older, more experienced athletes reported they coped better than younger, less experienced athletes during the tournament.  相似文献   

Ratings of perceived exertion of ACSM exercise guidelines in individuals varying in aerobic fitness     

Kaufman C  Berg K  Noble J  Thomas J 《Research quarterly for exercise and sport》2006,77(1):122-130

The physiological responses of high (HF) and low fit (LF) individuals at given perceived exercise intensities were compared to ranges provided by the American College of Sports Medicine (ACSM). Participants were 7 LFand 8 HF men between the ages of 22 and 26 years. All participants performed a maximum oxygen uptake and lactate threshold test and two 15-min experimental runs in which they exercised at a constant perceived exercise intensity (RPE 13 and 17). The LF group exhibited significantly greater maximum oxygen uptake reserve ( % VO2R, p < .05) and velocity of lactate threshold (p < .01) values than HF at RPE 13 and 17. Both groups had significantly greater % VO2R and maximum heart rate values at RPE 13 in comparison with the ACSM ranges, using the highest value for the given range (p < or = .001).  相似文献   

Perceptions of response-to-intervention practices: results from a cross-sectional survey of school-board directors and support service professionals     

Chantal Camden  Dana R. Anaby  Cheyenne Gauvin  Wenonah Campbell  Sheila Bennett  Jade Berbari  Lisa Rivard  Lina Ianni  Steven R. Shaw  GOLDS Research Team 《Support for Learning》2022,37(2):285-308

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Measuring The Business Impact of E‐Learning: An Empirical Study     

Greg Wang  Robert Von Der Linn  Diane Foucar‐Szocki  Oris Griffin  Erin Sceiford 《Performance Improvement Quarterly》2003,16(3):17-30

This study fills a gap in the current HRD literature of return on investment (ROI) analysis of technology‐based learning interventions. Using a Type IV control group method as defined by Wang (2002), the study empirically analyzed and measured the learning effectiveness and the business impact of an e‐learning system implemented in General Electric Company. The e‐learning system under study demonstrated significant economic returns in regard to reduced learning response time and reduced project cycle time. The study shows that e‐learning, as a means of technology‐based HRD intervention, can be highly effective as a performance support learning mechanism, although the results also suggest that e‐learning alone is not sufficient to replace the traditional face‐to‐face learning platforms.  相似文献   

Collaborative Multimedia     

Judy Diamond  Alan Bond  Beth Schenker  Debra Meier  Dana Twersky 《Curator: The Museum Journal》1995,38(3):137-149

Six natural history institutions contributed video and other images to produce a single multimedia exhibit about famous paleontology sites throughout the United States. In Mesozoic Monsters, Mammals and Magnolias, users can view videos of the original excavation of each of the sites and also play computer games relating to each location. This project provides a model for how collaboration among museums can reduce the cost of multimedia exhibits while improving quality and making them available to wider audiences.  相似文献   

Association of Gestational Diabetes Mellitus and Perinatal Maternal Depression with Early Childhood Behavioral Problems: An Environmental Influences on Child Health Outcomes (ECHO) Study     

Lauren C. Shuffrey  Santiago Morales  Melanie H. Jacobson  Michelle Bosquet Enlow  Akhgar Ghassabian  Amy E. Margolis  Maristella Lucchini  Kecia N. Carroll  Rosa M. Crum  Dana Dabelea  Arielle Deutsch  William P. Fifer  Brandon Goldson  Christine W. Hockett  W. Alex Mason  Lisette T. Jacobson  Thomas G. O'Connor  Nicolò Pini  Yael Rayport  Ayesha Sania  Leonardo Trasande  Rosalind J. Wright  Seonjoo Lee  Catherine Monk  program collaborators for Environmental influences on Child Health Outcomes 《Child development》2023,94(6):1595-1609

This study examined the association of gestational diabetes mellitus (GDM), prenatal, and postnatal maternal depressive symptoms with externalizing, internalizing, and autism spectrum problems on the Preschool Child Behavior Checklist in 2379 children aged 4.12 ± 0.60 (48% female; 47% White, 32% Black, 15% Mixed Race, 4% Asian, <2% American Indian/Alaskan Native, <2% Native Hawaiian; 23% Hispanic). Data were collected from the NIH Environmental influences on Child Health Outcomes (ECHO) Program from 2009-2021. GDM, prenatal, and postnatal maternal depressive symptoms were each associated with increased child externalizing and internalizing problems. GDM was associated with increased autism behaviors only among children exposed to perinatal maternal depressive symptoms above the median level. Stratified analyses revealed a relation between GDM and child outcomes in males only.  相似文献   

Performance consulting: Moving beyond training     

Dana  James Robinson  David Chapman 《Performance Improvement》1999,38(1):56-59

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