Wieschke, J., Schacht, D.D., Spensberger, F., Klinkhammer, N. and Grgic, M. 2022. Establishing Multi-Perspective Instruments in Early Education During COVID-19: Measuring the Implementation of Protective Measures and the Subjective Level of Information About Pandemic-Related Regulations. Measurement Instruments for the Social Sciences. 4, 1 (May 2022), Article e11073. DOI:https://doi.org/10.1186/s42409-022-00033-2.