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ABSTRACT Inverted multiple factor analysis is used to examine a 20 × 20 matrix of correlations of English essay readers, based on 38 essays. A large general factor indicates considerable agreement among the readers. Three weak group factors suggest the existence of consistent schools of thought concerning the quality of English essays although it is possible that they are due to chance groupings. The intrinsic validity of an achievement test is discussed in relation to inverted factor analysis.
Torgerson et al. (Thu,) studied this question.
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