The ERiK-Methodological Report II is the second methodological report in the study 'Entwicklung von Rahmenbedingungen in der Kindertagesbetreuung - indikatorengestützte Qualitätsbeobachtung (ERiK)'. The report introduces the implementation of the sample and survey designs, evaluates the data quality and introduces the datasets of the ERiK-Surveys 2020. Together with the ERiK-Methodological Report I, it contains all background information on the ERiK-Surveys 2020.weiterlesen