Study Builder

What is this? This tool builds an .osc (Open Scale Chain) file for self-hosting an online study. An .osc file chains together consent forms, multiple scales, branching conditions, and completion redirects into a single runnable study session.

Two ways to use this:

Tip: A server with cPanel is an easy graphical way to deploy — upload the unzipped folder via File Manager. No command-line access required. Scales can be selected from the OpenScales catalog or uploaded as custom .osd files.

► Video Tutorial: Building and Hosting a Study

Study Info

Parameters

Variables available throughout the chain. Use ${name} in URLs and text.

NameSourceDefault / ValuesDescription

Data Upload

The default server/collect.php works with the server package. Change to an absolute URL (e.g., https://yourserver.com/study/server/collect.php) if your study files and data endpoint are hosted at different locations.

Chain Steps

Steps execute in order. Drag to reorder.