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In this study, we aim to coduct a Multi-Lab Registered Replication and Extension of [IJzerman et al.'s (2012) Study 1][1]. In the original study, the authors found that peripheral temperature decreased in a sample of Dutch students following an experience of social exclusion through Cyberball. The original study measured peripheral temperature on the index finger of the non-dominant hand. This original study was powered at 67% (see [data][2] and [script][3]). We will therefore first seek to replicate that finding, which will be the confirmatory part of our study. We will extend the original study in various ways, exploring other facets of the effect: 1. We will collect teamperature measures from index and pinky finger of the non-dominant hand, the wrist of the non-dominant hand, and the supraclavicular area on the non-dominant side. 2. We will measure all variables from our [social thermoregulation protocol][4]. 3. Social exclusion (versus inclusion) will be manipulated via the “Cyberball game” ([Williams & Jarvis, 2006][5]; [Williams et al., 2000][6]) like in the original study. To better sample across social exclusion “situations” player numbers will vary between between 3 and 6. 4. The sample size for each cluster will be increased (minimum N=130 per each cluster for the present project; original project N=41). 4. To achieve better control of the experimental environment, room temperature was continuously measured using Tempo DicsTM (Bluetooth Temperature, Humidity, and Dew Point Sensor Beacon and Data Logger). The CORE Lab will provide sensors, mobile phones, and server space to participating researchers, and will train researchers how to use the sensors. We will also support in conducting the analysis and preparing the Registered Report and/or preregistration. - Lead researchers: [Lili Lazarevic ][7]and [Pavle Valerjev][8] - Administrative team: [Anna Szabelska][9], [Ronan Bellemin][10], and [Hans Rocha IJzerman][11]. Below you will find various helpful files to support with this project. - [The project tracking sheet for the project][12]. - [A Google Form where issues per site will be reported.][13] - [Instructions for the IRB submission][14] - [An example recruitment flyer][15] - [An example consent form][16] - [An example IRB submission][17] - [A study recruitment email][18] - [A debriefing][19] List of participating labs can be found [here][20]. [1]: https://pubmed.ncbi.nlm.nih.gov/22717422/ [2]: https://osf.io/v5s6d/files/googledrive/coldfinger_data.sav/ [3]: https://osf.io/dtqhz/ [4]: https://osf.io/xf7uk/ [5]: https://link.springer.com/article/10.3758/BF03192765 [6]: https://psycnet.apa.org/buy/2000-00920-006 [7]: https://osf.io/profile/ [8]: https://osf.io/hpt98/ [9]: https://osf.io/ztm9w/ [10]: https://osf.io/zfe5k/ [11]: https://osf.io/3hsfj/ [12]: https://docs.google.com/spreadsheets/d/1xq9hdtXmVATxtX44K14CzldOcwul8wiX/edit#gid=2034641315 [13]: https://docs.google.com/spreadsheets/d/1xq9hdtXmVATxtX44K14CzldOcwul8wiX/edit#gid=2034641315 [14]: https://docs.google.com/document/d/1HHn_U3HZW8O0lNljEywLsiwJdRwZPMLGEUqX2tIGMEE/edit [15]: https://osf.io/txp5j/ [16]: https://docs.google.com/document/d/1jgOAqlrdgleYmrBMNECNPpwKBOJO7GjBlaZGHeyXYx4/edit [17]: https://docs.google.com/document/d/1pPGJEGmLXh2ZBFShLDwUZPhFC0aLS8tmplKYGEXHa08/edit [18]: https://osf.io/fq26x/ [19]: https://docs.google.com/document/d/1bdpNG318vjXg8rN9-Lb1pdjQt8G8IOjSVGen_276I-Q/edit?usp=sharing [20]: https://docs.google.com/spreadsheets/d/1FpToPp8nGxWMqfbTG4M0HoRbctdrXWUG/edit?usp=drive_web&ouid=101845480691448292031&rtpof=true