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The focused interview is designed to determine the responses of persons exposed to a situation previously analyzed by the investigator. Its chief functions are to discover: (1) the significant aspects of the total situation to which response has occurred; (2) discrepancies between anticipated and actual effects; (3) responses of deviant subgroups in the population; and (4) the processes involved in experimentally induced effects. Procedures for satisfying the criteria of specificity, range, and depth in the interview are described.
Merton et al. (Wed,) studied this question.