Design criteria for dental operating rooms : Merkle, F.B.TRC Report No. T72-00766, Sep. 1971, 33 pp.; abstr. in R and D Abstracts

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 219 KB
• Volume: 4
• Category: Article
• ISSN: 0003-6870
• DOI: 10.1016/0003-6870(73)90041-0

✦ Synopsis

speed and accuracy of mental subtraction from analogue and digital time displays in verbal reporting of the results were investiaged with twenty subjects. For two digital displays compared with either two analogue or one analogue and one digital display, substraction speed was found to be twice as high whereas the error was lower. The errors for the three types of subtraction mentioned were classified into six categories. Operational and perceptual errors were typical of the analogue-analogue subtractions. For the digital-digital subtractions, typical errors were in mental arithmetic and digital-toanalogue conversion.

4.1.23 (60716)

Vartabedian, A.G.