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ERIC Number: ED170305
Record Type: RIE
Publication Date: 1978-Mar
Reference Count: 0
Freestanding Complex Optical Scanners.
Frisbie, David A.
A complex freestanding optical mark recognition (OMR) scanner is one which is not on-line to an external processor; it has intelligence stemming from an internal processor located within the unit or system. The advantages and disadvantages of a complex OMR can best be assessed after identifying the scanning needs and constraints of the potential user (institution). The process of selecting a scanner from several available on the market can be facilitated by examining each unit feature-by-feature. Suggested characteristics include: (1) physical characteristics; (2) performance characteristics--production rate, optical sensing capability, forms requirements, scoring functions, accuracy, and output characteristics; and (3) general characteristics--available system configurations, ease of operation, and cost. Although complex freestanding scanners are not necessarily better than simple externally-controlled scanners, one important advantage is their ability to produce hard copy (answer sheets with scores, listings, and item analyses) quickly. (Author/GDC)
Publication Type: Speeches/Meeting Papers; Reports - Evaluative; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the National Council on Measurement in Education (Toronto, Ontario, Canada, March, 1978)