By J. A. Callow
This quantity of Advances in Botanical study incorporating Advances in Plant Pathology contains 5 reports on quite a few issues together with: * Foliar Endophytes and Their Interactions with Host vegetation, with particular connection with the Gymnospermae * vegetation looking for solar * The Mechanics of Root Anchorage * Molecular Genetics of Sulphate Assimilation * Pathogenecity, Host-specificity, and inhabitants Biology of Taesia spp, Causal brokers of Eyespot affliction of Cereals
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Additional info for Advances in Botanical Research, Vol. 33
Thornberry et al. (1990) found that this is still a problem. The introduction of the notebook computers in the near future will considerably reduce this problem. In the long run, it is not impossible that this situation also will improve for CATI systems, if drastically different telephone networks (ISDN) are introduced that will allow pictures to be transmitted from the interviewer to the respondent at a speed of 64 KB per second. There is even a possibility of a system (broadband-ISDN) that is 10,000 times faster (Gonzalez, 1990).
The second procedure took into account all possible errors and proposed several specific questions to solve the inconsistency. It is this procedure that should be used for self-administered interviews. Again, procedures for self-administered interviewing, being more explicit, can be used in interviewer-administered procedures, but not vice versa. Use of Visual Aids One of the procedures frequently used to improve data quality is the use of visual aids. As seen above, the use of these tools is not possible in the CATI application and is difficult in CAPI applications that are interviewer-administered, but in selfadministered procedures they can be used.
Simple translations of paper-and-pencil interviews to computer-assisted procedures will not necessarily lead to better quality data. More effort in the design is required in order to make the CADAC questionnaires better than paper-and-pencil questionnaires. Facilities that can be used for this purpose are the topic of Chapter 2, but first, let us summarize the results so far. < previous page page_25 next page > < previous page page_26 next page > Page 26 Summary We have shown in this chapter that interview programs combined with good questionnaires not only can replace paper questionnaires, but also can replace the interviewer, at least partially.