Are we using the best statistical tool examine general slowing in language impairment? Possibly not.

Are we using the best statistical tool examine general slowing in language impairment? Possibly not, say authors Jennifer Windsor, Rochelle L Milbrath, Edward J Carney, and Susan E Rakowski.

In their article, "General Slowing in Language Impairment: Methodological Considerations in Testing the Hypothesis," Windsor and her co-authors use sum of two units statistical methods--ordinary least squares regression (OLS) and hierarchichal linear modeling with random coefficients (HLM)--to examine response-time data from 25 studies of general slowing. The pair methods yielded very ...

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