The history of scatter analysis on the WISC-R and the SBIS is reviewed. Evidence is presented that indicates that the practice of scatter analysis has yielded little of significance. Even in its most benign form, scatter analysis has the potential for doing more harm than good. Scatter analysis on the WISC-R, the SBIS, and similar tests is argued to be an exhausted research area, with little hope offered that any subsequent research efforts will prove beneficial.
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Kramer et al. (1987) studied this question.