Welcome!! For this activity, you will be shown a series of 7 letters. The middle letter - the fourth letter - will either be an 'h', 'k', 's', or 'c'. If the letter is an 'h' or 'k', you must press the 'q' button. If the letter is a 'c' or 's', you must press the 'p' button. Your job is to hit the correct button as quickly as possible. Your answer is recorded automatically.
Complete practice trials and test trials.