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. Author manuscript; available in PMC: 2019 Sep 14.
Published in final edited form as: Am J Ment Retard. 2001 Jan;106(1):39–51. doi: 10.1352/0895-8017(2001)106<0039:EOCBAT>2.0.CO;2

Table 1.

Age Groups by Participant Groups

Age group CA
2–3 4–5 2–3 4–5
Group n n Mean SD Mean SD
Prader Willi syndrome 45 39 2.67 .48 4.4 .49
Down syndrome 36 20 2.2 .40 4.6 .50
Typically developing 45 31 2.4 .50 4.4 .50