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The authors examined the extent to which the Realistic. Investigative, Artistic, Social. Enterprising, and Conventional scales and 3-point codes of the Self-Directed Search may be considered statistically and practically equivalent across 3 different modes of administration: paper-and-pencil, personal computer, and Internet. Student preferences for the respective versions were also examined.
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Lumsden et al. (2004) studied this question.
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