German primary school students' reading skills have declined between 2016 and 2021, with a deficit of up to one third of a school year. The most significant portion of the decline is attributed to the COVID-19 pandemic experiences. These delays are critical because children have to catch up on skills and knowledge they should already have while…

Nowadays, citizens collaborate increasingly with scientists in citizen science (CS) projects on environmental issues. CS projects often have educational goals and aim to increase citizens' knowledge with the ultimate goal of fostering positive attitudes toward science. To date, little is known about the extent to which CS projects strengthen the…