Basic Tutorials

Looking to learn how to, among others, create stimuli, display them according to certain checks and/or display mulitple stimuli at the same time? This is the place to be!

Building an Experiment from Scratch

Building an Experiment from Scratch

Although the Stroop Task shows you how to set-up a Survey from scratch, it is intermixed with how to set-up the Stroop Task itself and also fairly short on guidance. This tutorial is intended to show the basic steps necessary for getting the QRTEngine working in a Survey. Including the steps required to get the data-file to come out correctly. Step... Read more...

Creating Stimuli

The backbone of any behavioral experiment are the stimuli. In developing the QRTEngine, our main focus has been on precisely displaying these stimuli at the right time and for the right duration. In this tutorial we hope to give tips & tricks on how to create any stimulus you might need during your experiments. The QRTEngine, in its most basic ... Read more...
Conditional Stimuli

Conditional Stimuli

Displaying performance-related feedback to a participant is a staple of behavioral experimentation. The QRTEngine implements a powerful method of doing such 'conditional' stimuli (stimuli that are displayed based on certain conditions having been satisfied). Although Qualtrics allows for 'conditional' branches inside their Surveys and the display of... Read more...
Counterbalancing

Counterbalancing

Countering the effect of the order of presentation on experimental results is often done by a technique called 'counterbalancing'. Participants are assigned to two different groups where each group has parts of the experiment displayed in a different order. In this tutorial we will explain how to do counterbalancing in Qualtrics. Counterbalancing ... Read more...
Multiple Stimuli

Multiple Stimuli

In the QRTEngine it is possible to display multiple stimuli at the same time, even though the default behaviour is that of only showing one stimulus at a time. The aim of this tutorial is to show exactly how to do that and how to handle the complexities that arise from this (which aren't that many). We'll do this by implementing a cued go/no-go task,... Read more...

Finishing up your Experiment

During our validation studies for the QRTEngine, we developed several techniques that optimised our experiments. Ranging from connection speed filtering, to pre-loading images in cache. In this tutorial we will explain a few of these tricks. Adding Text-only Questions In order to counter-act possible 'trial flashes' (github issue ), part of the ... Read more...

Using the QRTE Parser

After successfully having run an experiment, the next important step is analyzing the data. Although Qualtrics provides a simple way to download the data file, but this data file can't be used yet by statistical packages such as SPSS and Excel. A file conversion step is needed and in this tutorial we hope to explain how to do exactly that. There ... Read more...

Building a Complex Experiment

Previous tutorials have explained much about the techniques with which we can build different features into our experiments using the QRTEngine. In this tutorial we integrate all these different techniques into a single, relatively complex, experiment that will hopefully take your experiment-building prowess to the next level. Before we start, it is ... Read more...

Debugging your task

As important as building your task is making sure it works correctly. In other words, you need to find out what is wrong in your Survey when it doesn't work quite like you expected. This guide will be a collection of different debugging strategies you can employ to check what went wrong while building the task. Please read on! <This guide is currently... Read more...