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Word: proof (lookup in dictionary) (lookup stats)
Dates: during 1950-1959
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Usage:

...machine is virtually cheat-proof. If a wrong answer is marked correct by a student, the teacher can discover it; and, of course, someone might watch the student at the machine, which could also be set up in a library where a clerk could give out the disks...

Author: By Paul H. Plotz, | Title: Skinner Machines Make Classroom Like Kitchen | 4/18/1956 | See Source »

...relations is just as enlightening as his more factual description of Red China's internal development. The case of the author himself--a Western-educated, former Nationalist Chinese who now sees the Red regime in a rather uncritical light and positively basks in its international power--affords the best proof possible of one of the book's main points: that "the fundamental force motivating Communist China's new role in international affairs is her militant nationalism...

Author: By Samuel J. Walker, | Title: The New China | 4/18/1956 | See Source »

...letter to the New York Times on Saturday, Perry described such a course as "the best possible proof that, when we propose substituting deeds for words, we mean what we say." He suggested that we will then have a positive action to exchange for Russian support of free elections in Germany. Such an exchange of proofs of sincerity is necessary, he believes, for the "eventual rule of order in central Europe...

Author: NO WRITER ATTRIBUTED | Title: Perry Advocates Communist China Admission to U.N. | 4/17/1956 | See Source »

...semiannual report to the President and Congress, SBAdministrator Wendell B. Barnes pointed out that earnings of small corporations in the year ending with 1955's third quarter jumped to $627 million, up 42% from the previous year. The climb, said SBA, was proof that they were swiftly pulling out of their post-Korea slump. Though the small business earnings index (1947-49 = 100) was still well below wartime peaks, in a year it moved up 21 points to 67, and is still picking...

Author: /time Magazine | Title: STATE OF BUSINESS: The Other Boom | 4/16/1956 | See Source »

...student has correctly translated the sentence, he pushes a lever which marks the paper as correct and adjusts the machine so that that sentence will only appear once more. During a session with the machine, the student must translate each sentence twice. The machine, Skinner claims, is relatively cheat-proof because a teacher can check the answers on the paper with the mark the machine has registered. There would also be a phonograph for dictation drill...

Author: NO WRITER ATTRIBUTED | Title: Skinner Receives Grant for Building Teaching Machine | 4/16/1956 | See Source »

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