My New CS789 Applet.

Follow the instructions at the top of the applet.

• Use two hands means use one hand for the mouse or 'p' key, the other for the space bar; use one hand means do both with the same hand.
• Do the buttons in the order of the numbers that appear on them. The interface will not let you make a mistake.
• The results of each trial appear in the area at the bottom. "Finished." means that you have completed all the trialsYou can cut-and-paste them into an email which will you send to me, so that I can collate the results.
• Select a button with the mouse of 'p' key, depending on the instructions at the top. The 'p' key advances the selection to the right and down; the mouse selects by clicking over a button. Hitting the space bar completes the button.
• A trial ends when all nine buttons have been processed, and a new trial begins immediately.