900,000 forms had to be “repaired” by clerks and remicrofilmed before they could be read (e.g., because the forms were torn or folded improperly and so were out of alignment for scanning). The FOSDIC equipment could read answer dots and sense the presence of write-in entries but not capture such entries directly. Write-in responses were keyed by clerks using the paper questionnaires for long-form-sample items and a microfilm access device for keying of write-in responses to the race question. After keying, the write-in responses were coded by a combination of computer and clerical review.

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