The Superiorities of Form M of the Strong Vocational Interest Blank

Form M of the Strong Vocational Interest Blank was suppressed. For it was substituted the Strong-Campbell, which retained only the item format and one part of the logic of the original. Whereas Strong structured his test around 11 job families emerging from Thurstone's factor analysis, the Strong-Campbell uses concepts derived from Holland's armchair view. Some occupational scales have been lost and some added. Consistently with sexual politics, each scale is now scored twice. Old goring services' franchises have been ended, new ones let, the most consequential move being the cancelling of the only service that gave same-day scoring. The dropping of scales for executive jobs has severely lowered the occupational level at which counselors can work. The loss of the job families has reduced predictive range. Feedback sessions are less fertile, perhaps because they take place fortnight after the test. Separate studies showed that Form M predicted well for 14 and 40 years into the future. The power of its substitute remains to be seen.