Creation and management of online perceptual tests
Let's imagine that...
Because of TRUE is created to perform online tests, achieving a broad audience for your tests is easy. Moreover, evaluators only need a computer with Internet connection and a web browser. No installation of extra software is required, nor your assistance during the test because you can add all the instructions at the beggining of test and some samples also. Users can take the test confortably at home, following your indications, and if they get tired they can leave the test and resume it at any time from the last stimulus they evaluated.
Also, you can get the results of the test at any moment in a variety of formats, obtaining the answers of each user to each stimulus, the last evaluated stimulus, the time that the user needed to take the test, the answers to a final survey that you can add to your test, etc.
TRUE is highly customizable to fit the requirements of the perceptual tests designed by different researchers (see Features for more information). There are some predefined templates, including MOS (Mean Opinion Score), CMOS (Comparison MOS) and DMOS (Degradation MOS) tests based on ITU-T P.800 recommendation.
In addition, interactive graphical interfaces can be used to create enhanced tests, as for example the Self-Assessment Manikin (SAM) plug-in oriented to the evaluation of emotional resources (based on Bradley, M. & Lang, P. (1994). Measuring emotion: The self-assessment manikin and the semantic differential. Journal of Behavioral Therapy and Experimental Psychiatry, 25, 49-59 ).
TRUE is partially supported by the European Commission, project SALERO (FP6 IST-4-027122-IP), and the Spanish Government, project SAVE (TEC2006- 08043/TCM).
Because we want to offer a tool for those researchers that need to perform perceptual tests as sometimes we needed it. It's completely free and we are still working in TRUE so we would appreciate your comments and suggestions to improve this tool.
Only one thing, if you use it for your research you should cite us as indicated in section Citations.