DOCUMENT RESUME ED 408 782 EC 305 663 AUTHOR Ottenbacher, Kenneth J.; Angelo, Jennifer TITLE Comparing Scanning Modes for Youths with Cerebral Palsy. Final Report. SPONS AGENCY Department of Education, Washington, DC. PUB DATE 94 NOTE 55p.; Software not available from EDRS. CONTRACT H023A20038 PUB TYPE Non-Print Media (100) Reports Descriptive (141) Tests /Questionnaires (160) EDRS PRICE MF01/PC03 Plus Postage. DESCRIPTORS Adolescents; *Assistive Devices (for Disabled); *Cerebral Palsy; *Communication Aids (for Disabled); *Electronic Control; *Electronic Equipment; *Evaluation Methods; Program Effectiveness; Young Adults IDENTIFIERS Cursor Speed; Scanning; Scanning Rate ABSTRACT This study of 22 individuals (ages 13-20) with cerebral palsy investigated the use of scanning, an interface technique that allows access to assistive devices such as communication boards, electronic augmentative communication devices, and computers by using a pointer, either a finger or a cursor. This packet of information includes the findings of a comparison of three basic modes of scanning use with electronic devices (automatic, inverse, and Ftep), and information on the Scanning Assessment Tool. The study examined which scanning mode provides the greatest accuracy for individuals with cerebral palsy and the effects of cursor speed. A second analysis examined the difference between pre-hits, post-hits, no hits, and scanning mode. The study's results were not definitive; persons with different types of cerebral palsy may or may not be more successful when using a particular type of scanning. The results do indicate that when persons are potential candidates for using scanning, each mode should be evaluated separately. The study found that all subjects had higher accuracy scores when using a slower scanning speed and that there were significant differences between pre-hits, post-hits, and no hits and cerebral palsy type. An appendix includes the survey the clinicians used for the Scanning Assessment Tool and information on assessing selection control techniques. Instructions for installing and using the Scanning Assessment Tool are attached, along with a reprint of an article, "Scanning Assessment Tool: Assessing Selection Control Techniques" (Jennifer Angelo). (Contains 39 references.) (CR) ******************************************************************************** Reproductions supplied by EDRS are the best that can be made from the original document. ********************************************************************************