A book, table, database, or other object that stores the mapping between plaintext words or phrases and their equivalents in a code
Generically, any information on the structure, contents, and layout of a data file Typically, a codebook includes: column locations and widths for each variable; definitions of different record types; response codes for each variable; codes used to indicate nonresponse and missing data; exact questions and skip patterns used in a survey; and other indications of the content of each variable Many codebooks also include frequencies of response Codebooks vary widely in quality and amount of information included
Generically, any information on the structure, contents, and layout of a datafile Typically, a codebook includes: column locations and widths for each variable ; definitions of different record types ; response codes for each variable; codes use to indicate non-response and missing data; exact questions and skip patterns used in a survey; and other indications of the content of each variable Many codebooks also include frequencies of response Codebooks vary widely in quality and amount of information included They may be machine-readable or paper copy or microfiche
Literally, the listing or "book" of code transformations More generally, any collection of such transformations Classically, letters, common words and useful phrases were numbered in a codebook; messages transformed into those numbers were "coded messages " Also see nomenclator A "codebook style cipher" refers to a block cipher
A set of question responses and their associated computer code numbers Used to assign categories to answers given to each question on a survey questionnaire