Meta-analysis coding instructions. 1) Only work on a meta-analysis you have been assigned to. For an overview of the meta-analyses you have been assigned to, see [https://osf.io/suft6/] 2) The meta-analysis pdf files are available here: https://osf.io/q23ye/files/ in the folder “All Meta-Analyses”. There is also a link to the online PDF in the overview file here: [https://osf.io/suft6/] 3) Most articles that are included in the meta-analyses and that could be downloaded online are available here: [https://osf.io/z5bcw]/ (if you do not have access, e-mail me and I will add you). If you click on the folder for the meta-analysis you will reproduce in the File section, a button ‘download as zip’ will appear, and you can download all the articles we could easily find online. 4) The zip-file contains a document with studies that could not be located. If the meta-analysis includes information on how these studies can be retrieved, try to find them. If the data is only accessible by e-mailing the original researchers, at this stage in the project, we will not contact the original authors (we might do this as a follow up). 5) To reproduce the meta-anallysis, use the MetaDataCodingForm available here: [https://osf.io/c9f85/] Use one form for each meta-analysis. If you need to make additions to the coding form, please contact Daniel (D.Lakens@tue.nl). 6) If studies can not be located, enter only the study name. Follow the name used in the meta-analysis (e.g., Azjen, 1977). Leave the remaining information empty. 7) The goal is to reproduce the original meta-analysis. Code the same effect included in the meta-analysis. Do not re-interpret the choice for an effect to include. If alternative choices were clearly possible, or if errors are made, enter this information in the ‘comment’ field. Explain what the error or alternative choice was. If you leave the ARTICLE_DOI field empty, I will let a RA enter that information. 8) For reliability, effect sizes will be coded twice, by two individuals. To work towards the first report for this project, we will code all effects once (so as many meta-analyses are reproduced as possible when we have to submit the report at the 30th of March, 2017). When you have time, proceed with a second individual coding the effects as well. 9) To determine the reliability across teams, we will all code 10 studies part of a meta-analysis not part of the main project. The meta-analysis is available here: [https://osf.io/c73su]/ and the 10 papers are in the folder ‘Try-out meta-analysis (Peters-Scheffers) here: [https://osf.io/jsw8b/files/] 10) If you run into any problems or delays, or simply have a question, please contact me (D.Lakens@tue.nl). : https://osf.io/suft6/ : https://osf.io/suft6/ : https://osf.io/z5bcw/ : https://osf.io/c9f85/ : https://osf.io/c73su : https://osf.io/jsw8b/files/
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