TABLE 3.

Mean lexical diversity scores and standard deviations (SD) for younger and older adults and group differences for each discourse type

Discourse type	Younger group		Older group		t(84)	p
	M	SD	M	SD
Procedural	35.91	11.60	42.33	11.05	−2.64	.01*
Eventcasts	53.56	19.62	51.61	11.61	.56	.58
Story	58.81	11.24	58.50	14.81	.11	.92
Recounts	64.81	15.09	71.73	12.22	−2.55	.01*

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

^*p < .0125.