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Typing Speed Example
In Terms of
Gross Speed Net Speed Supposition Gross Speed Net Speed
KPM = (Keystrokes Net KPM = KPM - A person typed Gross Speed = Net Speed = 100 -
without errors + (Keystrokes with 200 keystrokes 200/2 (40/2)
Keystrokes Keystrokes with errors / Time per 2 mins. with => 100 KPM => 80 KPM
errors) / Time spent in minutes) errors in 40
spent in minutes keystrokes.
TYPING ACCURACY
Typing Accuracy is defined as the percentage of correct entries, out of the total entries typed. It can be:
Example
In Terms of Typing Accuracy
Supposition Net Speed
Accuracy % = 100% – A person typed 50 words Accuracy = 100 – ((6 *
((Words with errors × per 2 mins. with errors in 6 100)/50)
Word 100%) / Total number of words.
words) => 88%
Accuracy % = 100% – A person typed 250 Accuracy = 100 – ((30 *
((Characters with errors * characters per 2 mins. with 100)/250)
Characters 100%) / Total number of errors in 30 characters.
characters) => 88%
Accuracy % = 100% – A person typed 200 Accuracy = 100 – ((40 *
((keystrokes with errors * keystrokes per 2 mins. with 100)/200)
Keystrokes 100%) / Total number of errors in 40 keystrokes.
keystrokes) => 80%
TYPING RHYTHM
The Typing Rhythm means typing a character (keystroke) at equal intervals using the touch typing method. To control
the constant typing speed, the Slowdown indicator, in terms of percentage is used as given below:
Example
In Terms of Slowdown Formula
Supposition Slowdown
Slowdown % = (words A person typed 60 words Slowdown = (12 * 100) / 60
Word with delay * 100%)/ Total per 2 mins. with delay in => 20 %
number of words 12 words.
Slowdown % = (characters A person typed 250 Slowdown = (20 * 100) /
Characters with delay * 100%) / Total characters per 2 mins. with 250
number of characters delay in 20 characters. => 8 %
Slowdown % = (keystroke A person typed 200 Slowdown = (16 * 100) /
delay * 100%) / Total keystrokes per 2 mins. with 200
Keystrokes
number of keystrokes delay in 16 keystrokes.
=> 8 %
Data Entry and Keyboarding Skills 219

