This OSF project contains additional materials for the article "Successfully Striving for Happiness: Socially Engaged Pursuits Predict Increases in Life Satisfaction", see also [preprint][1]. - [Preregistration form][2] - [Online Supplement][3] - [Additional Material component][4], including - Coding instructions for rating steps [1][5] and [2][6] - Data and analysis scripts (please take a look at the [read me file][7])* - The complete analysis output of the mediation model ([V1: socializing as a categorical variables][8], [V2: socializing as a continuous variable][9]) - [A detailed breakdown of the sample size][10] - [A timeline of preregistration process][11] - [The coding tool we used for the first step of the ratings can be found on GitHub][12] - All questionnaires can be found on the [website of the SOEP-IS][13], see in particular the questionnaires of the [2014][14] and [2015][15] assessments [1]: http://home.uni-leipzig.de/diffdiag/pppd/wp-content/uploads/Manuscript-Pursuit-of-Happiness_final.pdf [2]: https://osf.io/4nsjb/register/565fb3678c5e4a66b5582f67 [3]: https://osf.io/mry43/ [4]: https://osf.io/ma38k/ [5]: https://osf.io/da2nd/ [6]: https://osf.io/6qyyh/ [7]: https://osf.io/xw7d2/ [8]: https://osf.io/ny83k/ [9]: https://osf.io/zupdm/ [10]: https://osf.io/puhng/ [11]: https://osf.io/zjhyj/ [12]: https://github.com/der-bruemmer/lifesatisfaction-coding-tool [13]: https://www.diw.de/en/diw_01.c.558267.en/soep_is_release_2015.html [14]: http://panel.gsoep.de/soep-docs/surveypapers/diw_ssp0455.pdf [15]: http://panel.gsoep.de/soep-docs/surveypapers/diw_ssp0448.pdf