Table 3.

Dose, dose frequency, and treatment time for each treatment condition.

Treatment condition	Treatment		Treatment time
	Dose a	Dose frequency b	Average session length (min)	No. of sessions	No. of weeks c
4 × 9	4	9	13	23	12
6 × 6	6	6	14	15	8
9 × 4	9	4	16	10	5

^a Dose refers to the number of exposures to a target word during a book reading session.

^b Dose frequency refers to the number of repeated book reading sessions.

^c Typically two sessions occurred per week.