email: info@sdr.com.au Sydney, Australia Tel: +61-2-9882-2882

The Observer XT

The integrated solution for systematic observation

From Noldus Information Technology

The Observer XT is the professional and user-friendly software package for the collection, analysis, and presentation of observational data. It offers seamless integration with other data acquisition systems, such as eye trackers and physiological measurement instruments. More than 20,000 professionals around the world are using The Observer XT to advance their research, testing, and training.

How The Observer XT works

The Observer XT supports the entire workflow of a research project:

You can also extend the basic system with:

Data analysis features

  • Time-Event Table
- a chronological listing of all recorded events, visualising the change of states and the occurrences of events in the course of time.
  • Time-Event Plot
- a graph in which observational data are plotted against time, giving a quick overview of what happened and when.
  • Elementary Statistics
- descriptive statistics on the frequency and duration of events or states, for subjects, individual behaviors, modifiers, and combinations.
  • Lag Sequential Analysis
- examines how often certain events are preceded or followed by other events, for example how often a certain operation is followed by an error.
  • Reliability Analysis
- measures the level of agreement between pairs of raters, based on the degree of agreement between the scores in two data files.
  • Export functions
- exports the summary tables to spreadsheets, databases or statistics packages.

For more information on The Observer please drop us an email, or visit the Noldus website. Or request a free 30-day trial of The Observer XT.



You may have seen this image in our newsletter ... for more information, please see this case study on the Noldus website.



We also supply a range of cameras, lenses and related video equipment. We would be pleased to advise on, design and integrate a complete observational system for you.


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