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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Aphasiology. 2011 Oct 24;25(11):1414–1430. doi: 10.1080/02687038.2011.603898

TABLE 3.

Mean lexical diversity scores and standard errors (SE) for PWA and NIA and group differences for each discourse elicitation task

Discourse task PWA group
 NIA group
M SE M SE t(50) p
Single pictures 40.81 3.20 66.65 4.03 –4.96 .000*
Sequential pictures 55.10 4.33 86.48 4.17 –5.22 .000*
Story telling 52.07 4.94 112.53 4.75 –8.82 .000*

To control for Type I Error, alpha was set to .0125 for each simple effect.

*

p < .0125.