The Observer XT


Depending on your research needs, you can extend the base version of The Observer XT with two modules: Media Module and External Data Module.

Extend the Base version

If you want to score data from a video or audio file or if you want to import external data, such as physiological data or eye-tracking data, you will need one or both add-on module(s). In addition to the modules, you can extend the system with tools such as uASQ to set up questionnaires and collect subjective information, uLog to record key- and mouse activity, or E-prime to present stimuli to your test participants.

The Observer XT is the most complete software for behavioral research. Supporting you from coding behaviors on a timeline and unraveling the sequence of events to integrating different data modalities in a complete lab.

  • Code behaviors in a quantitative way and visualize them on a timeline

  • Automatically synchronize multiple data streams

  • Calculate statistics and assess reliability


Add-on modules

The Base version of The Observer XT® allows for study setup, coding scheme design, live coding, offline editing, general analysis, reliability & lag sequential analysis, and presentation of behavioral data. Depending on your research needs, you can extend this basic system with two modules:

Media Module
For synchronized playback of multiple video files during the observation, and offline scoring of digital media files. All visualized on one timeline.

Design your lab
Design your lab

External Data Module
Combine external data (collected with data acquisition systems) on one timeline in The Observer XT. Then analyze external data and behavioral data all together.


using a keyboard mouse clicks hand

uLog: user-system interaction

uLog automatically records user-system interactions, such as: 

  • Keystrokes, special keys (e.g. space bar), key combinations 
  • Characters, text strings
  • Mouse clicks, double clicks, mouse wheel turns 
  • Windows activated, message box activated
  • Applications started or ended

To avoid misuse, uLog shows an icon to inform the user that keyboard logging is active. Starting and stopping of event logging is automatically synchronized with other observational data, and the event log is imported into your The Observer XT project.


uASQ: the questionnaire tool 

uASQ enhances The Observer XT with direct feedback from your test participant during a live observation. It enables you to ask your test participant three different types of questions: open ended, multiple choice, and Likert scale. 

In The Observer XT you can easily select data for analysis: for example filter by choosing only test participants who agreed with a certain statement. Both Likert Scale questions and Multiple Choice questions can be analyzed quickly. 

  • Combine video and event data with a participant survey
  • Collect quantitative and qualitative data
  • Analyze data quickly and easily in The Observer XT
uASQ screenshot

Eprime screenshot The Observer XT 

E-Prime: Stimulus presentation

To present stimuli to your test participants, you can use E-Prime in combination with The Observer XT. E-Prime is the stimulus presentation program widely used in psychological research. 

E-Prime sends the collected data to The Observer XT immediately after the session. The collected data is then visualized as behaviors and modifiers in The Observer XT; including the time at which the stimulus was given, which stimulus it was, and how the participant responded to the stimulus. 

If you want to use The Observer XT in combination with for example FaceReader, an eye tracker, E-Prime and physiological data, this new solution is perfect for you!