Table 2.

Parameters of the Typing and Keypad Programs for each Participant

	Timing Dur (s)	Target Characters Keypada	Target Characters Typingb	Min, Max	Min Corr (range)	Max Inc
S1	60	0 1 2 4 5 6 7 8 9. − +	d f j k	1, 1 or 2, 4	90–240	3
S2	60	0 1 2 3 4 5 6 7 8 9. − + / *	r u a s d f g h j k l;	1, 1 or 2, 4	90– 250	3
S3	60	0 1 2 3 4 5 6 7 8 9. − + / *	q w p o a s d f j k l; z x c v b n m.	1, 1; 1, 4; or 2, 4	90– 250	3
S4	60	0 1 2 3 4 5 6 7 8 9 − + / *	d f j k	1, 1 or 2, 4	90– 230	3

Note. Timing Dur is the duration in s of a single timing. Target characters were arranged in sets, or groups of 3 characters. Min, Max represents the minimum and maximum number of sets per sample. Min corr and max inc is the minimum number of correct characters and maximum number errors to meet mastery criteria. Because the minimum correct characters varied across steps, a range is presented.

^aTarget Characters Keypad could be placed in any position within a set (e.g., .45, 6+7, 42/, 357).

^bTarget characters for the typing program are listed in the order found on the keyboard, but were presented in different combinations within a set (e.g., fkd, kdf, dfk, jkd).