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Here you can configure application settings:
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There will be 2 lines on the screen. One line is fixed (model). The line with the blue circle (end) is movable.
Your task is to use the Drag and drop action to rotate the line with the blue circle so that it is parallel to the fixed line.
In other words, you need to create 2 parallel lines on the screen.
To activate Drag and Drop you need to click exactly on the blue circle. Then start rotating (drag) the blue circle in the desired direction.
As this is a demonstration task, the blue dot is always placed in the optimal position so that the 2 lines are parallel.
When you are done, click the button at the bottom right of the screen to display the next task.
To return to the previous task, click the button at the bottom left of the screen.
Application settings:
Number of items:The number of stimuli in the task
Timer is enabledNo
Total task time (seconds):00:10:00
Enable backward - display the button for the previous item:Yes
Progress bar shows:ItemsTimeNothingIt will be displayed how many items are left to the end.
Demo mode:Off
Angle between two lines is given by formula:
tgα = tg(α2−α1) = (tgα2−tgα1) / (1+tgα1*tgα2) = |(k2−k1)/(1+k1*k2)|.
where k1 (α1) is the slope (angle) of the first line, k2 (α2) is the slope (angle) of the second line, and α (alpha) is the angle between them. The slope or gradient of a line is a number that describes both the direction and the steepness of the line [slope k=dy/dx=(y2-y1)/(x2-x1)]. Note: tg = tan = tangent.
The dependent variable in this task is the angle between the two lines. The maximum error (100%) is if the lines are perpendicular to each other (right angle, PI/2 or 90°). The error is shown as a deviation from the maximum error in percents.
Unit: percentages. The minimum possible error is 0% which is very difficult to achieve.
Storage (useful for group research):
Storage:NoYesThis web application will not store results within your web browser. Data is lost when the browser tab is closed
You have a total of 0 results stored in your web browser
dx = resolution in the x-axis direction (pixels). The width of each rectangle in the grid.
dy = resolution in the y-axis direction (pixels). The height of each rectangle in the grid.
Your browser probably doesn't have support for the Web Storage Object or access to the Storage Object is disabled. Check your browser settings. In some browsers (example: IE11) Storage Object is not enabled when accessed in a local file (offline).
Results by items:
Descriptive statistics
The error is shown as a deviation from the maximum error in percent. The error percentage is shown in red. Total range (for error): 0% -100%.