Condition Knowledge of Results Settings

Knowledge of Results

After completing a trial the participant may need to receive feedback on how their trial was performed. The feedback is presented during the Trial-to-Trial period (default 0 s; this should be enlarged, right click your experiment >Properties >Running Experiment).  Currently, one or two features can be fed back. The experimenter can decide to set minimum and maximum values within which the subject needs to remain This helps the participant to produce stable data.

Important

Experiment Properties > Running Experiment > Process Immediately after Recording? should be checked ON for the Knowledge of Results indicators to function.

Use Feedback

Show knowledge of Results after each trial

Feature

Select a feature extracted from the trial (right click trial >View numerical data to view all features and segments).

Segment

The segment used to extract the feature. When submovement analysis is off (default) then segment number is stroke number. When submovement analysis is on, Segment 1 refers to the primary submovement of Stroke 1, Segment 2 to the secondary submovement, Segment 3 to the total movement, Segment 3 to the primary submovement of Stroke 2, etc.

Min Value / Max Value

Minimum / Maximum value the participant should stay within. When the extracted feature is in within 25% to 75% of this range, a green bar is extended from the middle till the achieved value on this Min to Max scale. When the feature is exceeding this but still within the range, a yellow bar is extended from the middle till the achieved value. When the feature is higher / lower than Max / Min Value, a red bar is extended from the middle till the top / bottom of the chart.  

NOTE: The left arrow represents the presently achieved value. The right arrow represents the value achieved in the previous trial. This offers additional help to the participant to maintain constant behavior.

EXAMPLE. Participants need to maintain reaction times between 140 ms (anticipation error) and 1000 ms (fall-asleep error) in an experiment with submovement analysis (therefore Segment 3 is the total of Stroke 1). Set Feature=StartTime, Segment=3, Min.Value=0.14 s, Max.Value= 1 s.