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Words per minute

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Words per minute, commonly abbreviated WPM, is a measure of words processed in a minute, often used as a measurement of typing speed or reading speed.

Contents

For the purpose of typing measurement, each word is standardized to be five characters or keystrokes long in English, including spaces and punctuation. For example, the phrase "I run" counts as one word, but "rhinoceros" and "let's talk" both count as two.

Alphanumeric entry

Brandon Raziano found that one study of average computer users in 1998, the average rate for transcription was 33 words per minute, and 19 words per minute for composition. In the same study, when the group was divided into "fast," "moderate," and "slow" groups, the average speeds were 40 wpm, 35 wpm, and 23 wpm, respectively.

With the onset of the era of desktop computers, fast typing skills became much more widespread.

An average professional typist types usually in speeds of 50 to 80 wpm, while some positions can require 80 to 95 (usually the minimum required for dispatch positions and other time-sensitive typing jobs), and some advanced typists work at speeds above 120 wpm. Two-finger typists, sometimes also referred to as "hunt and peck" typists, commonly reach sustained speeds of about 37 wpm for memorized text and 27 wpm when copying text, but in bursts may be able to reach much higher speeds. From the 1920s through the 1970s, typing speed (along with shorthand speed) was an important secretarial qualification and typing contests were popular and often publicized by typewriter companies as promotional tools.

The fastest typing speed on an alphanumeric keyboard, 216 words in one minute, was achieved by Stella Pajunas in 1946 on an IBM electric. As of 2005, writer Barbara Blackburn was the fastest alphanumerical English language typist in the world, according to The Guinness Book of World Records. Using the Dvorak Simplified Keyboard, she maintained 150 wpm for 50 minutes, and 170 wpm for shorter periods. Her top speed was 212 wpm. Current online records of sprint speeds on short text selections are 290 wpm, achieved by Guilherme Sandrini on typingzone.com and 276 wpm achieved by Kathy Chiang on TypeRacer.com. For longer passages, Sean Wrona holds the record with 174 wpm on a 50-minute test taken on hi-games.net.

Stenotype

Stenotype keyboards enable the trained user to input text as fast as 225 wpm or faster at very high accuracy for an extended period of time, which is sufficient for real-time activities such as court reporting or closed captioning. While dropout rates are very high—in some cases, only 10% or even less graduate—stenotype students are usually able to reach speeds of 100–120 wpm within six months, which is faster than most alphanumeric typists. Guinness World Records gives 360 wpm with 97.23% accuracy as the highest achieved speed using a stenotype.

Numeric entry

The numeric entry or 10 key speed is a measure of one's ability to manipulate the numeric keypad found on most modern separate computer keyboards. It is used to measure speed for jobs such as data entry of number information on items such as remittance advice, bills, or checks, as deposited to lockboxes. It is measured in "Keystrokes per hour," or KPH. Many jobs require a certain KPH, often 8,000 or 10,000.

Handwriting

For an adult population (age range 18–64) the average speed of copying is 68 letters per minute, with the range from a minimum of 26 to a maximum of 113 letters per minute.

A study of police interview records showed that the highest speed fell in the range 120–155 characters per minute, the highest possible limit being 190 characters per minute.

According to various studies the speed of handwriting of 3–7 graders varies from 25 to 94 letters per minute.

Using stenography (shorthand) methods, this rate increases greatly. Handwriting speeds up to 350 words per minute have been achieved in shorthand competitions.

Reading and comprehension

Words per minute is a common metric for assessing reading speed and is often used in the context of remedial skills evaluation, as well as in the context of speed reading, where it is a controversial measure of reading performance.

A word in this context is the same as in the context of speech.

Research done in 2012 measured the speed at which subjects read a text aloud, and found the average speed across 17 different languages to be 184±29 WPM or 863±234 CPM. However, for the languages that use the Latin or Cyrillic alphabets, the number of WPM varied, as low as 161±18 for Finnish and as high as 228±30 for English. The reason for this is different word structures in each language (longer words in such languages as Finnish and shorter words in English). However, the number of characters per minute tends to be around 1000 for all the tested languages. For the tested Asian languages that use particular writing systems (Arabic, Hebrew, Chinese, Japanese) these numbers are lower.

Scientific studies have demonstrated that reading—defined here as capturing and decoding all the words on every page—faster than 900 wpm is not feasible given the limits set by the anatomy of the eye.

While proofreading materials, people are able to read English at 200 WPM on paper, and 180 WPM on a monitor. [Those numbers from Ziefle, 1998, are for studies that used monitors prior to 1992. See Noyes & Garland 2008 for a modern tech. view of equivalence]

Speech and listening

Audiobooks are recommended to be 150–160 words per minute, which is the range that people comfortably hear and vocalize words.

Slide presentations tend to be closer to 100–125 wpm for a comfortable pace, auctioneers can speak at about 250 wpm, and the fastest speaking policy debaters speak from 350 to over 500 words per minute. Internet speech calculators show that various things influence words per minute including nervousness.

John Moschitta, Jr., was listed in Guinness World Records, for a time, as the world's fastest speaker, being able to talk at 586 wpm. He has since been surpassed by Steve Woodmore, who achieved a rate of 637 wpm.

Morse code

Morse code uses sequences of short and long duration signals called dots and dashes. In a given message, dots are all the same duration and each dash is as long as three dots. The dotting rate of Morse code is the rate at which signal is sent, measured in dot time units. But Morse code speed is usually measured in words per minute instead of dotting rate. To measure speeds consistently in words per minute, the dotting rate is converted to words per minute by assuming standard words.

It has become practice in the community of Morse code operators to use two different standard words to measure Morse code speeds in words per minute: "PARIS" and "CODEX". Each as five letters; "PARIS" is 50 dot durations in Morse code, while "CODEX" is 60.

Usually the standard PARIS word rate is used to measure plain text speeds, while the CODEX standard word is used to measure five character random code groups.

Morse code speeds rated in words per minute using the CODEX (60 dot durations) standard word to set the dotting rate are 20% faster than speeds set with a dotting rate according to the PARIS (50 dot durations) standard word since, e.g. (60/50 = 1.2).

It is common to hear 20 wpm among experienced ham radio operators sending Morse code using manually operated hand telegraph keys. There are several CW (continuous wave) fraternal organizations that routinely send and receive Morse code at speeds up to 60 wpm. Twenty words per minute (20wpm) represents the rough upper limit for Morse operators attempting to write down Morse code received by ear using paper and pencil. Many skilled Morse code operators can receive Morse code by ear mentally without writing down the information at speeds up to 70 wpm. To write down the Morse code information manually at speeds higher than 20 wpm it is usual for the operators to use a typewriter which allows higher speed copying.

The fastest CW operator was Theodore Roosevelt McElroy copying at 75.6 wpm using a typewriter at the 1939 world championship.

References

Words per minute Wikipedia