OLL File – What is .oll file and how to open it?
OLL File Extension
TrialDirector Object Load List – file format by inData
OLL (TrialDirector Object Load List) is a file extension developed by inData for TrialDirector, a program used for managing and analyzing clinical trial data. It contains a list of objects to be loaded into TrialDirector, including patient data, study data, and analysis results.
OLL File Format
An OLL file, short for TrialDirector Object Load List, is a proprietary format associated with the TrialDirector software developed by inData. TrialDirector is a powerful data acquisition and analysis platform widely used in neuroscience and psychophysics research. The OLL file format plays a crucial role in storing and managing objects within TrialDirector experiments.
Structure and Function of OLL Files
An OLL file contains a hierarchical structure of objects that define the parameters, stimuli, and experimental design of a TrialDirector experiment. These objects can include stimuli presentations, experimental conditions, data collection settings, and analysis routines. The OLL file provides a structured representation of the experiment, allowing researchers to easily configure, modify, and share experimental designs with colleagues. By storing objects in a modular and hierarchical manner, TrialDirector facilitates the creation of complex experiments with minimal effort.
Understanding OLL File Format
An OLL file is a text file containing a list of objects used in TrialDirector, a software program for managing and presenting research stimuli. These objects can include images, videos, audio clips, text, and other experimental materials. The OLL file serves as a central repository for all the resources needed for a particular experiment, providing a structured and efficient way to organize and load them during the study.
Opening OLL Files
To open an OLL file, you need to have TrialDirector software installed on your computer. Once you have installed TrialDirector, you can double-click on the OLL file to open it in the program. Alternatively, you can open TrialDirector and select “File” > “Open” from the menu bar. In the file browser dialog box, navigate to the location of the OLL file and select it to open.
OLL File Format
An OLL file is a TrialDirector Object Load List file associated with the TrialDirector software, a research tool for designing and conducting experiments in psychology, market research, and other fields. It contains a list of objects used in an experiment, such as images, sounds, text, and videos. The OLL file defines the properties of each object, including its type, location, size, and other attributes required for the experiment. It is used to load these objects into the TrialDirector environment for presentation during the experiment.
Technical Details of OLL Files
OLL files are typically structured in a plain text format and follow a specific syntax. They use a header section to specify general information about the experiment, such as the number of objects, the object types supported, and any relevant metadata. Following the header, the file contains a list of object descriptions, each representing a specific object used in the experiment. These descriptions include the object’s type (e.g., image, sound, text), its path on the computer, and the parameters for controlling its presentation (e.g., duration, repeat count, position on the screen). OLL files are essential for experiment setup in TrialDirector, allowing researchers to define the visual and auditory stimuli that participants will encounter during the study.