@misc{Hopf1974,
  author    = {Hopf, Diether},
  title     = {Das Numerus-Clausus-Verfahren : M{\"o}glichkeiten, Grenzen, Folgewirkungen},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-31203},
  year      = {1974},
  abstract  = {Inhalt: 1. Grundz{\"u}ge der Auslese nach Eignung und Leistung 2. Das Numerus-Clausus-Verfahren 2.1 Pr{\"a}diktor 2.2 Kriterium 2.3 Prognose 2.4 Fehler 3. Folgen des Numerus Clausus 3.1 Auswirkungen auf die Rekrutierung von Akademikern 3.2 Backwash effect 4. Schlußbemerkung},
  language  = {de}
}
@misc{Hopf1970,
  author    = {Hopf, Diether},
  title     = {{\"U}bergangsauslese und Leistungsdifferenzierung : eine Untersuchung am Beispiel der Grammar und Comprehensive Schools in England},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36420},
  year      = {1970},
  abstract  = {Inhalt: 1. Einleitung 2. Leistungsdifferenzierung im tripartite System und die Diskussion {\"u}berdie {\"U}bergangsauslese 2.1. Zur Geschichte der {\"U}bergangsauslese 2.2. Die Ausleseverfahren 2.3. Die Debatte um die Abh{\"a}ngigkeit der Intelligenz von Anlageund Umwelt 2.4. Das Problem der Konstanz des Intelligenzquotienten 2.5. Die Forderung nach equality of educational opportunity 2.6. Der intellektualistische Akzent der ll+-Pr{\"u}fung 2.7. Psychohygienische Argumente in der Diskussion {\"u}ber diell+-Pr{\"u}fung 2.8. Die Validit{\"a}t der {\"U}bergangsauslese 2.8.1. Das Kriterienproblem 2.8.2. Die 11+-Pr{\"u}fung in ihrer Gesamtheit 2.8.3. Die einzelnen Verfahren 3. Leistungsdifferenzierung in comprehensive schools 3.1. Einleitung 3.1.1. Zur Datengewinnung 3.1.2. Zur Definition der comprehensive school 3.2. Formen und Verfahren der Differenzierung in comprehensiveschools 3.2.1. Differenzierungsformen 3.2.2. Differenzierungsverfahren 3.3. Die Bew{\"a}hrung des Differenzierungssystems der comprehensiveschools 3.3.1. Methodische Probleme der Bew{\"a}hrungskontrolle 3.3.2. Leistungsniveau 3.3.3. Durchl{\"a}ssigkeit 3.4. Die These vom Leistungsvorteil homogener Gruppen 3.5. „Non-streaming" in comprehensive schools Schlußbemerkung},
  language  = {de}
}
@misc{KrappmannHopf1979,
  author    = {Krappmann, Lothar and Hopf, Diether},
  title     = {Spiele und Spielerisches in der Grundschule},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36408},
  year      = {1979},
  abstract  = {Inhalt: - Wieviel Spiel gibt es in den Grundschulen? - Wozu dienen die Spiele imUnterricht der Grundschule? - Spiele zur Belohnung und zur Erholung - Spiele f{\"u}r Ordnung und Disziplin - Spiele zur {\"U}bung und zur Veranschaulichung(Spiele als Hilfsmittel des Lernens) - Lernen durch Spiel - Spiele zur Problembew{\"a}ltigung - Haben Spiele das Lernen in der Schule ver{\"a}ndert?},
  language  = {de}
}
@misc{Hopf1980,
  author    = {Hopf, Diether},
  title     = {P{\"a}dagogische Diagnostik},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36393},
  year      = {1980},
  abstract  = {Inhalt: - EINF{\"U}HRUNG - P{\"A}DAGOGISCHE DIAGNOSTIK UND SCHULISCHES LERNEN - P{\"A}DAGOGISCHE DIAGNOSTIK UND SCHULISCHE AUSLESE - ZUR GEGENW{\"A}RTIGEN ZENSURENGEBUNG - SCHULTESTS - SCHLUSSBEMERKUNG},
  language  = {de}
}
@misc{Hopf1986,
  author    = {Hopf, Diether},
  title     = {Die Deutsche Schule: eine Einf{\"u}hrung f{\"u}r ausl{\"a}ndische Lehrer},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36381},
  year      = {1986},
  abstract  = {Inhalt: 2.1. Einleitung 2.2. Das deutsche Schulsystem 2.2.1. Die Grundstruktur 2.2.2. Zur Entwicklung des Schulwesens 2.2.3. Die Sch{\"u}ler 2.2.4. Die Lehrer 2.3. Die Schule von innen 2.3.1. Rahmenbedingungen des Unterrichts 2.3.2. Unterrichtsinhalte 2.3.3. Unterrichtsmethoden 2.3.4. Leistungsbeurteilung 2.3.5. Außerunterrichtliche Angebote und soziale Erfahrungen in der Schule 2.4. Anmerkungen und Literatur},
  language  = {de}
}
@misc{Hopf1983,
  author    = {Hopf, Diether},
  title     = {The children of aliens in West German schools: situation and problems},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36374},
  year      = {1983},
  abstract  = {Contents: - GENERAL OUTLINE OF PROBLEMS AND QUANTITATIVE SITUATION - THE CHILDREN OF FOREIGN NATIONALS IN THE EDUCATION SYSTEM - DIFFERENTIATION ACCORDING TO NATIONALITY - DIFFERENTIATION BETWEEN "GENERATIONS" - SCHOOL AND TEACHING PROBLEMS - THE HETEROGENEITY OF SCHOOLCHILDREN - INSTRUCTION},
  language  = {en}
}
@misc{Hopf1973,
  author    = {Hopf, Diether},
  title     = {M{\"o}glichkeiten und Grenzen der Anwendung von Tests},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36367},
  year      = {1973},
  abstract  = {Inhalt: 1. Eigenschaften psychologischer Tests - Objektivit{\"a}t - Normen - Reliabilit{\"a}t oder Zuverl{\"a}ssigkeit - Validit{\"a}t oder G{\"u}ltigkeit 2. Anwendung psychologischer Tests - Auslese - Fehler - Kriteriumsverhalten und Selektionsstrategie - Klassifikation - Forschung 3. Aufwand f{\"u}r die Testkonstruktion 4. Zusammenfassung},
  language  = {de}
}
@misc{HatzichristouHopf1992,
  author    = {Hatzichristou, Chryse and Hopf, Diether},
  title     = {School performance and adjustment of Greek remigrant students in the schools of their home country},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36352},
  year      = {1992},
  abstract  = {This study explores the adjustment of Greek remigrant students in Greek public schools after their families' return to Greece from the Federal Republic of Germany. Teacher and self-rating instruments were used, and achievement and language competence data were obtained. The sample consisted of 13- to 15-year-old junior high school students in northern Greece. The remigrant students were divided into two groups ("early return" and "late return"), based on the year of return to Greece. The control group consisted of all the local classmates of these students. Remigrant students (mainly late return) were found to experience difficulties mainly in the language/learning domain and less in the interpersonal and intrapersonal behavior domains.},
  language  = {en}
}
@phdthesis{Bange2009,
  author    = {Bange, Sebastian},
  title     = {Transient optical and electrical effects in polymeric semiconductors},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36314},
  school      = {Universit{\"a}t Potsdam},
  year      = {2009},
  abstract  = {Classical semiconductor physics has been continuously improving electronic components such as diodes, light-emitting diodes, solar cells and transistors based on highly purified inorganic crystals over the past decades. Organic semiconductors, notably polymeric, are a comparatively young field of research, the first light-emitting diode based on conjugated polymers having been demonstrated in 1990. Polymeric semiconductors are of tremendous interest for high-volume, low-cost manufacturing ("printed electronics"). Due to their rather simple device structure mostly comprising only one or two functional layers, polymeric diodes are much more difficult to optimize compared to small-molecular organic devices. Usually, functions such as charge injection and transport are handled by the same material which thus needs to be highly optimized. The present work contributes to expanding the knowledge on the physical mechanisms determining device performance by analyzing the role of charge injection and transport on device efficiency for blue and white-emitting devices, based on commercially relevant spiro-linked polyfluorene derivatives. It is shown that such polymers can act as very efficient electron conductors and that interface effects such as charge trapping play the key role in determining the overall device efficiency. This work contributes to the knowledge of how charges drift through the polymer layer to finally find neutral emissive trap states and thus allows a quantitative prediction of the emission color of multichromophoric systems, compatible with the observed color shifts upon driving voltage and temperature variation as well as with electrical conditioning effects. In a more methodically oriented part, it is demonstrated that the transient device emission observed upon terminating the driving voltage can be used to monitor the decay of geminately-bound species as well as to determine trapped charge densities. This enables direct comparisons with numerical simulations based on the known properties of charge injection, transport and recombination. The method of charge extraction under linear increasing voltages (CELIV) is investigated in some detail, correcting for errors in the published approach and highlighting the role of non-idealized conditions typically present in experiments. An improved method is suggested to determine the field dependence of charge mobility in a more accurate way. Finally, it is shown that the neglect of charge recombination has led to a misunderstanding of experimental results in terms of a time-dependent mobility relaxation.},
  language  = {en}
}
@misc{Hopf1994,
  author    = {Hopf, Diether},
  title     = {Kindergarten, Vorschule und Grundschule},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36346},
  year      = {1994},
  abstract  = {Inhalt: - Der Elementarbereich - Die Grundschule - Sch{\"u}ler, Schulen, Klassen - Lehrerinnen und Lehrer - Zur Arbeitsweise der Grundschule - Einschulung, Zeugnisse, «Sitzenbleiben», Schulleistungen und {\"U}bergang zur Sekund{\"a}rschule},
  language  = {de}
}