Our aim is to support the further development, transparency and reproducibility of ESM research by creating an open repository of existing ESM items. Contributing items to the repository means that we can all more easily find, use and cite these items. Going forward, we also aim to psychometrically validate items within the repository. In order to achieve this, we need your help in collecting as many items as possible! To find out more information and to contribute items to the repository, you can download the Contributors’ Pack below. In order to contribute items to the repository, **you will need to download all five documents in the Contributors' Pack.** These are: 1. Welcome to the ESM Item Repository 2. ESM Item Repository -Project Overview 3. Contributors' Workflow - Phase I 4. ESM Item Repository Contributors' Agreement 5. ESM Item Repository Submission Template When you have downloaded the ESM Item Repository submission template (spreadsheet) document, you can enter your items into it and then send it back to us via email (submissions [at] esmitemrepository.com). We will then collate all the submitted items into a repository and publish them here. If you are interested in contributing items to the repository, please fill out your contact info in the ESM Repository contributors Google Sheet, so that we can send you updates.