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The serial event timer and recorder (SETAR) was developed for use in experimental studies of human performance. The SETAR records "events" and the time intervals between them, in sequence and in a digital form, on standard teleprinter tape. An "event" is defined as the making or breaking of one or more of the input circuits. Recordings can be made from any apparatus capable of providing such "events." The machine and its principles of operation are described.
Norman T. Welford (Tue,) studied this question.
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