The Observer XT

External Data Module and add-ons

Depending on your research needs, you can extend the basic system with the external data module. In addition, tools such as uASQ, uLog, or E-prime are also available.

Extend the Base version

If you want to import external data, such as physiological data or eye-tracking data, you will need the add-on External Data Module. In addition to the module, 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


External Data Module

The Base version of The Observer XT® allows for study setup, coding scheme design, synchronized playback of multiple video files,  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 the External Data Module. This allows you to combine external data (collected with data acquisition systems) on one timeline in The Observer XT. You can then analyze external data and behavioral data all together.

observer web illustration modules external data

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!