Big shout out to the wonderful interdisciplinary team (from the Institute for Biodiversity and Ecosystem Dynamics and Psychology Research Institute of the University of Amsterdam): @cameronbrick.bsky.social, Bernou Boven, Julia Hijink @praetorius-a.bsky.social, & Lies Jacobs! 🙏

(5/5) Implications💡
- Longitudinal designs are well-suited for studying the transformative potential of citizen science
- Moving beyond concern, future work can test whether citizen science boosts personal & contextual drivers of environmental impact (like through skills training or policy advocacy)

(4/5) Results📉
- Most psychological constructs were not or only weakly related to pro-environmental washing behaviors in the urban Dutch survey
- Citizen scientists were mainly women & highly educated, but these demographics were unrelated to washing behaviors in the urban Dutch survey

(3/5) Results 📉
- Citizen science participation increased awareness of microfiber pollution and perceptions of household responsibility
- Participation did not change other psychological constructs (like environmentalist identity & social norms) or behavioral intentions to use the laundry bags

(2/5) Method 🔬
- 57 Dutch residents washed their clothes in laundry bags for 3 months, collected microfibers after each wash & completed pre and post surveys
- In addition, 814 urban Dutch residents completed a cross-sectional survey on demographics, psychological constructs & washing behaviors