.. _Happiness Analyzer Smartphone Application:

Happiness Analyzer Smartphone Application
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**Short Description:** Understanding whether nationally representative datasets can be collected using apps to collect data is crucial. To address this question, we built a new happiness app. In the first year (2015), participants did not receive any reward, and in the second year (2016), a different group of participants received a 50 Euro Amazon voucher for their participation.

**Methodological Details:** The eight chapter of Ludwigs’ doctoral thesis contains a detailed report of the methodology. :download:`pdf <docs/Thesis_Ludwigs.pdf>`

**Incentives:** In the first wave of the module (2015), participants did not get any reward for using the study app. In the second wave (2016), they were offered a 50 Euro Amazon voucher for using the app.

**Available Papers:** 

*Ludwigs, Kai, Richard Lucas, Ruut Veenhoven, David Richter, and Lidia Arends*. 2019. Can Happiness Apps Generate Nationally Representative Datasets? - a Case Study Collecting Data on People’s Happiness Using the German Socio-Economic Panel. Applied 
Research in Quality of Life (online first). (https://doi.org/10.1007/s11482-019-09723-2 );

*Ludwigs, Kai*. 2018. `The Happiness Analyzer: A New Technique for Measuring Subjective Well-Being <https://repub.eur.nl/pub/105249/>`_  (thesis). Rotterdam: Erasmus University Rotterdam. 


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