Download or read book A Sixty minute Vigilance Task with 100 Scoreable Responses written by Robert S. Kennedy and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).

Download or read book A Sixty minute Vigilance Task with 100 Scoreable Responses written by Robert S. Kennedy and published by . This book was released on 1968 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1969 with total page 1290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1968 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research and Development Reports Index written by and published by . This book was released on 1968 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1969 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Government Reports Index written by and published by . This book was released on 1968 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reports written by Naval School of Aviation Medicine (U.S.) and published by . This book was released on 1968 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Medical News Letter written by and published by . This book was released on 1969 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1968 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1968-11 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1968 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: