Direkt zur Hauptnavigation springen Direkt zum Inhalt springen
info(at)avldigital.remove-this.de
Deutsch English
Letzte Suchanfragen

Ergebnisse für *

Zeige Ergebnisse 1 bis 7 von 7.

  1. Mean convergence, combinatorics, and grade-point averages
    Autor*in: Waddell, Glen R.; McDonough, Robert
    Erschienen: July 2022
    Verlag:  IZA - Institute of Labor Economics, Bonn, Germany

    While comparing students across large differences in GPA follows one's intuition that higher GPAs correlate positively with higher-performing students, this need not be the case locally. Grade-point averaging is fundamentally a combinatorics problem,... mehr

    Zugang:
    Verlag (kostenfrei)
    Verlag (kostenfrei)
    Resolving-System (kostenfrei)

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 4
    Fernleihe:
    keine Fernleihe

     

    While comparing students across large differences in GPA follows one's intuition that higher GPAs correlate positively with higher-performing students, this need not be the case locally. Grade-point averaging is fundamentally a combinatorics problem, and thereby challenges inference based on local comparisons - this is especially true when students have experienced only small numbers of classes. While the effect of combinatorics diminishes in larger numbers of classes, mean convergence then has us jeopardize local comparability as GPA better delineates students of different ability. Given these two characteristics in decoding GPA, we discuss the advantages of machine-learning approaches to identifying treatment in educational settings.

     
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/263630
    Schriftenreihe: Discussion paper series / IZA ; no. 15414
    Schlagworte: GPA; grades; program evaluation; random forest; regression discontinuity
    Umfang: 1 Online-Ressource (circa 51 Seiten), Illustrationen
  2. Unintended effects of the flexible grading policy
    Autor*in: Ozsoy, Mehlika; Rodríguez-Planas, Núria
    Erschienen: January 2023
    Verlag:  IZA - Institute of Labor Economics, Bonn, Germany

    Using an unbalanced panel of 23,007 academic records spanning from Spring 2019 to Spring 2022 representing one fourth of Queens College student population; and estimating event study analyses with individual fixed effects to control for... mehr

    Zugang:
    Verlag (kostenfrei)
    Verlag (kostenfrei)
    Resolving-System (kostenfrei)

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 4
    Fernleihe:
    keine Fernleihe

     

    Using an unbalanced panel of 23,007 academic records spanning from Spring 2019 to Spring 2022 representing one fourth of Queens College student population; and estimating event study analyses with individual fixed effects to control for time-invariant unobserved heterogeneity, we find unintended effects of the flexible grading policy (FGP), which allowed students to exercise the pass/fail option during the first academic year of the pandemic. Once the policy was no longer available, students who had used it underperformed relative to their own pre-pandemic performance relative to the change in performance of students who had never used the policy. FGP users earned 5.3% lower GPA in Spring 2021 and 4.7% lower GPA in Fall 2021 relative to Fall 2019 relative to the change observed among FGP non-users. This pattern is robust to sensitivity analysis and holds across tiers of the 2019 cumulative GPA distribution, as well as across various socio-demographic groups. Furthermore, these detrimental effects increased with the intensity of the policy use. Students' response to a survey rules out that these findings may be driven by pandemic-related health shocks, childcare disruptions, or challenges with online learning, financial aid, or job loss. We estimate that using the FGP is associated with a 16% lower likelihood of graduating and a 18% lower likelihood of graduating on-time by Spring 2022.

     
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/272514
    Schriftenreihe: Discussion paper series / IZA ; no. 15887
    Schlagworte: flexible grading policy; unbalanced panel of academic records; transcript data; event analysis; individual fixed effects; survey data; GPA; college graduation and on-time graduation; COVID-19
    Umfang: 1 Online-Ressource (circa 47 Seiten), Illustrationen
  3. GermanLetsPlay: Im Wirbel der Welten
    Autor*in: Haramustek, Dario; Hörnig, Haiko
    Erschienen: 2021
    Verlag:  Community Editions, Köln

    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Beteiligt: Füleki, David (Illustrator)
    Sprache: Deutsch
    Medientyp: Ebook
    Format: Online
    ISBN: 9783960961819
    Weitere Identifier:
    Körperschaften/Kongresse:
    GermanLetsPlay (Verfasser)
    Schlagworte: Minecraft <Computerspiel>; Manga; YouTube; Abenteuer; Junge
    Weitere Schlagworte: (Produktform)Electronic book text; (Zielgruppe)ab 12 bis 99 Jahre; (Produktform (spezifisch))Fixed format; Let`s Play; Influencer; Minecraft; Abenteuer; GLP; GPA; Comicadventure; Merch; Paluten; Comic; YouTube; Manga; Humor; Videospiele; (VLB-WN)9260; (Zielgruppe)Junge Erwachsene; (Zielgruppe)Kinder/Jugendliche; humoristisch; für Jungen; Action; GTA
    Umfang: Online-Ressource, 160 Seiten
  4. Im Wirbel der Welten
    Autor*in: GermanLetsPlay; Haramustek, Dario; Hörnig, Haiko
    Erschienen: [2021]
    Verlag:  Community Editions, Köln

    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Beteiligt: Füleki, David (Künstler)
    Sprache: Deutsch
    Medientyp: Buch (Monographie)
    Format: Druck
    ISBN: 9783960961949; 3960961944
    Weitere Identifier:
    9783960961949
    Auflage/Ausgabe: Originalausgabe, 1. Auflage
    Schlagworte: Minecraft <Computerspiel>; Manga; YouTube; Abenteuer; Junge
    Weitere Schlagworte: (Produktform)Hardback; (Zielgruppe)Junge Erwachsene; (Zielgruppe)Kinder/Jugendliche; (Zielgruppe)ab 12 bis 99 Jahre; Videospiele; Influencer; Paluten; humoristisch; für Jungen; Action; Abenteuer; Comicadventure; Merch; YouTube; Let`s Play; Minecraft; Comic; Manga; Humor; GTA; GLP; (VLB-WN)1260: Hardcover, Softcover / Kinder- und Jugendbücher/Jugendbücher ab 12 Jahre; GPA
    Umfang: 152 Seiten, 26 cm
  5. Advanced transmission electron microscopy investigation of nano-clustering in Gd-doped GaN
    Autor*in: Wu, Mingjian
    Erschienen: 2014
    Verlag:  Berlin : Humboldt-Universität zu Berlin

    The central goal of this dissertation is (1) to clarify the distribution of Gd atoms in GaN:Gd with Gd concentration in the range between 10^16–10^19 cm^-3 by means of advanced (scanning) transmission electron microscopy [(S)TEM]; and based on that,... mehr

    Zugang:
    Verlag (kostenfrei)

     

    The central goal of this dissertation is (1) to clarify the distribution of Gd atoms in GaN:Gd with Gd concentration in the range between 10^16–10^19 cm^-3 by means of advanced (scanning) transmission electron microscopy [(S)TEM]; and based on that, (2) to understand the mechanisms that control such distribution. We discuss in detail the application and limitations of (S)TEM imaging and analysis techniques and modeling methods dedicated to the study of embedded nano-clusters. Besides, two case studies of semiconductor material systems that contain apparently observable nano-clusters are considered. One is about intentionally grown InAs nano-clusters embedded in Si and the other study the formation and phase transformation of Bi-containing clusters in annealed GaAsBi epilayers. Finally, we are able to identify the occurrence of GdN clusters in GaN:Gd samples and to determine their atomic structure. Strain contrast imaging in conjunction with contrast simulation unambiguously identifies the occurrence of small, platelet-shaped GdN clusters. These clusters are nearly uniform in size with their broader face parallel to the GaN (0001) basal plane. The result is confirmed by dark-field STEM Z-contrast imaging. The strong local lattice distortion (displacement field) induced by the clusters is recorded by HRTEM images and quantitatively analyzed. By comparing the displacement fields which are analyzed experimentally with these fields that are derived from energetically favored models, we conclude that the clusters are bilayer GdN with platelet diameter of only few Gd atoms; their internal structure is close to rocksalt GdN. This atomic structure model enables our discussion about the energetics of the clusters. The results indicate that the driving force for the formation of observed platelet in specific size is a compromise between the gain in cohesive energy and the penalty from interfacial strain energy due to lattice mismatch between the GdN cluster and GaN host. ; Das zentrale Ziel der vorliegenden Arbeit besteht ...

     
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    fttibhannoverren:oai:oa.tib.eu:123456789/4300
    Weitere Schlagworte: Grenzfläche; Nano-Clustering; Dehnung; (S)TEM; GPA; InAs/Si; Ga(As; Bi); strain; interface
    Umfang: Online-Ressource
    Bemerkung(en):

    Datenlieferant: Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
  6. Students' propensity to innovate: correlates, determinants, and impact on GPA
    Autor*in: Evdokimova, Mariia; Stepanova, Anastasija
    Erschienen: 2023
    Verlag:  National Research University, Higher School of Economic, [Moscow]

    Zugang:
    Verlag (kostenfrei)

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Fernleihe:
    keine Fernleihe
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Schriftenreihe: Array ; 265/EC/2023
    Schlagworte: propensity to innovate; KAI; sensation-seeking; creativity; risk-taking; proactivity; GPA
    Umfang: 1 Online-Ressource (circa 40 Seiten), Illustrationen
  7. The rising influence of family background on early school performance
    Autor*in: Markussen, Simen; Røed, Knut
    Erschienen: June 2023
    Verlag:  IZA - Institute of Labor Economics, Bonn, Germany

    We use administrative data from Norway to examine recent trends in the association between parents' prime age earnings rank and offspring's educational performance rank by age 15/16. We show that the intergenerational correlation between these two... mehr

    Zugang:
    Verlag (kostenfrei)
    Verlag (kostenfrei)
    Resolving-System (kostenfrei)

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 4
    Fernleihe:
    keine Fernleihe

     

    We use administrative data from Norway to examine recent trends in the association between parents' prime age earnings rank and offspring's educational performance rank by age 15/16. We show that the intergenerational correlation between these two ranks has increased over the past decades, and that offspring from economically disadvantaged families have fallen behind. This has happened despite public policies contributing to leveling the playing field. In particular, we show that the expansion of universal childcare and, more recently, the increased teacher-pupil ratio in compulsory school, have disproportionally benefited lower class offspring. The rising influence of parents' earnings rank can partly be explained by a strengthened intragenerational association between earnings rank and education among parents, as educational achievement has an inheritable component. Yet a considerable unexplained rise in the influence of family background remains, pointing towards an impending decline in intergenerational economic mobility.

     
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/278921
    Schriftenreihe: Discussion paper series / IZA ; no. 16223
    Schlagworte: Intergenerational mobility; achievement gaps; parental influence; meritocracy; GPA
    Umfang: 1 Online-Ressource (circa 42 Seiten), Illustrationen