Occupational interest scales and homogeneous
scales were developed and compared in a double
cross-validation design. A sample of 3,072 Air
Force personnel was randomly divided for study
purposes. Homogeneous scales were developed in
each half-sample using a backward item selection
procedure. Occupational scales were developed by
selecting items which discriminated satisfied personnel
within a career field from a "men-in-general"
group. A Bayesian classification procedure
was then used to cross-validate the scales developed
in each half-sample. The results indicated that the
occupational scales were slightly superior in correctly
classifying satisfied personnel versus men-in-general.
However, correlations between all interest
scales and job satisfaction indicated generally
higher validity for relevant homogeneous scales
than for occupational scales. It was concluded that
where prediction of group membership or occupational
choice is desired, occupational keying should
probably be the preferred approach. However, when
concern is with a broader range of criteria, homogeneous
scales may offer more general utility.
Reilly, Richard R & Echternacht, Gary J. (1979). Validation and comparison of homogeneous and occupational interest scales. Applied Psychological Measurement, 3, 177-185. doi:10.1177/014662167900300206
Reilly, Richard R.; Echternacht, Gary J..
Validation and comparison of homogeneous and occupational interest scales.
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