. Author manuscript; available in PMC: 2014 Jan 4.

Published in final edited form as: Cognition. 2007 Jan 8;105(2):10.1016/j.cognition.2006.10.005. doi: 10.1016/j.cognition.2006.10.005

Table 1.

Age, count list length and knower-levels of participants in Experiment 1.

		Age^a		Count list length^b
Levels	N	Mean (SE)	Range	Mean (SE)	Range
“One”-knowers	6	3;9(1.6)	3;0 – 4;4	9.8 (0.3)	8–12
“Two”-knowers	14	3;8(1.0)	3;2 – 4;4	10.3 (0.4)	9–11
“Three”-knowers	18	3;7(0.85)	3;0 – 4;0	10.8 (0.3)	10–12
“Four”-knowers	7	3;6(1.3)	3;0 – 4;0	10.1 (0.2)	10–11
CP-knowers	71	4;4(1.0)	3;2 – 5;7	10.8 (0.3)	10–16

Ages are in years and months (years; months).

Children’s count list length was determined by their longest count; e.g. the count list length for a child who once counted to “five” and once to “eight” would be 8.