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NSHelp: Experiment SettingsExperiment PropertiesRun Experiment Trial Settings

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Experiments

Experiments

This is a common topic for MovALyzeR, GripAlyzeR & ScriptAlyzeR. These programs will be referred to as MovAlyzeR on this page.

* You can create a new experiment by:

(1) Experiment Setup Wizard: The wizard will setup a basic experiment (with one condition, one group, and one subject). Multiple conditions/groups/subjects may be manually added afterwards;

(2) Manual Experiment Setup

* Deleting an Experiment

* Organization of Experiments/Terminology

* Notes


Experiment Setup Wizard

o Start the wizard by clicking File > Experiment Setup Wizard.

o Step 1: Click Create Experiment. >Type ID and Description > Click OK > Click Next.

o Step 2. Select Condition from a list (this shows all the conditions defined for the user).

OR If no conditions are defined, click Create Condition > Type ID, User's Description, Subject's Instruction, MovAlyzeR's Stroke Description > Click OK (other data are described in Condition Properties).

o NOTE: Only one condition can be created or added with the Experiment Setup Wizard. Additional conditions may be added manually.

o Type #Repetitions (Number of trials per condition) > Click Next.

o Step 3. Select Group from a list (this shows all the groups defined for the user)

OR If no Group is defined, first click Create Group > Type ID and Description > Click OK > Click Next.

o NOTE: Only one group can be created or added with the Experiment Setup Wizard. Additional groups may be added manually.

o Step 4. Select Subject from a list (this shows all the subjects defined for the user)

OR If no subjects are defined, first click Create Subject > Type ID and First and Last Names > Click OK > Click Next.

o NOTE: Only one subject can be created or added with the Experiment Setup Wizard. Additional subjects may be added manually.

o Click Finish.

o If additional conditions are needed, Create Conditions and add to the experiment.

o Add new/existing groups or subjects as described in creating new groups and creating new subjects.

o Change the Experiment Settings if needed.

o Run the experiment using the Run Experiment Wizard.


Manual Experiment Setup

o Right-click Experiments > Create new

o Create your new experiment and set its properties.

o Notes: Use Control-M to insert a new line in the notes. You can add additional notes by right-clicking experiment > extended notes.

o Select between Handwriting or Grip-force experiment.

o Create Conditions and add to the experiment.

o Add new/existing groups or subjects as described in creating new groups and creating new subjects.

o Change the Experiment Settings if needed.


Deleting an Experiment

o First remove all groups, subjects and conditions individually from the experiment.

o Expand the experiment tree up to the last detail.

o Right click on the experiment condition/group/subject > Remove from experiment.

o Then right click on the experiment > delete.


Organization of Experiments/terminology

To start building a large database of recordings, create a new experiment/test as described at the beginning of this page. Once this is done one or more conditions and one or more groups of subjects/participants can be added from an existing master list or created on the spot.

o The data navigator (Left window experiment tree) and the experiment control window employ the following symbols (On the program's main tool bar- Click View > Symbol Legend or Click the Toggle Legend toolbar button).

                            

Each experiment has the following hierarchy:

 Experiments are stand-alone tests that are collected with the same device (Wacom UD series, mouse, imported data, Gripper data) requiring specific device settings.

 Groups may be different populations of participants (e.g., 8-year olds, Grade 5, Young Adults, Patients) or different sessions that a person participated (e.g., before drug intake, the first training session) or different locations where data is collected (e.g., hospital, home, Phoenix).

 Subjects are individual participants in an experiment (e.g., name and other characteristics are entered). The experiment date is generated automatically and is used to calculate the subject's age a the time of the experiment. An updateable questionnaire is produced for each subject. A subject may participate in multiple sessions, or experiments.

 Conditions may be different writing patterns (e.g., stroke to a 0.2-cm target at 45 degrees direction, write the word "elite") or may be the same writing pattern but executed under different instructions (e.g., as fast as possible, 2 cm large) or under a different exposure condition (e.g., distracting sounds) within the same experiment. Conditions may also differ by different stimuli or precues.

  Trials are multiple replications of the same condition. In learning tests, Trial may be a dimension of analysis by itself. A gray checkmark next to the trial indicates that the data have not yet been processed, a green checkmark indicates a good trial and a red checkmark indicates a bad trial (based on the specified criteria).

Strokes are the segments of movements that string together the movement patterns. Currently, strokes are segmented using the vertical velocity zero crossings. More segmentation options may be implemented. There can be 1-25 strokes.

Submovements are the separate subsegments of a stroke. Currently, a stroke is segmented into 2 submovements at the first negative-to-positive zero crossing, or minimia, of the velocity profile after peak velocity.

Samples are the coordinates delivered by the recording device, the importing device or the data simulator. Ideally the samples are taken at a known and constant rate that is specified.

Coordinates are the individual position values produced by the movement recording device: x (horizontal position), y (vertical position), z (axial pen pressure) coordinates. More coordinates may be implemented in the future. Coordinates may have (integer or floating-point values) and are space separated with 3 coordinates maximum per line.

EXAMPLE: Experiment Graphire 4, Group GP4, Subject INK, Conditions SSL, and Trials 1-5 are represented as follows. Additionally, Subjects with IDs GRP, GP2, GFB and KFB of that group are shown but have not been expanded.

Left window experiment tree

         


Notes

Two lists for conditions, groups, subjects, stimuli, elements

o Master list of items ever created (Right click to create new items)

o List of items added to a particular experiment (Right Click to add existing ones or to create new ones)

Two experiment setup methods
 
o Open a particular experiment, choose to add new conditions/groups/subjects, and use the + button to instantly define new ones in the master list, etc.

o Add new conditions/groups/subjects to their master lists and then, at a later time, open a particular experiment to add those. This facilitates consistent multi-experiment project.

Two add conditions/groups/subjects methods

o Right-click Conditions/Groups/Subjects under a particular Experiment Add..., select items, and click OK.

o Drag a particular condition/group/subject from the master list to a particular experiment/experiment/group.

 

NSHelp: Experiment SettingsExperiment PropertiesRun Experiment Trial Settings

 

 


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