Indices of redundancy were obtained for five psychological tests, using the full component model, and the results were compared with those previously obtained by use of the common factor model. The three indices employed appeared to yield essentially equivalent information as to the ranking of the five tests: redundancy was generally lowest in the Developmental Test of Visual Perception and highest in the Wechsler Adult Intelligence Scale. The findings provide an empirical standard for evaluating the redundancy in other tests.
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