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. Author manuscript; available in PMC: 2025 Oct 21.
Published before final editing as: J Pediatr Neuropsychol. 2025 Sep 29:10.1037/jpn0000017. doi: 10.1037/jpn0000017

Table 1.

Demographic characteristics and KBIT-2 performance of final sample

Group N (male) Age in months (Range) Ethnicity (%) KBIT-2 Verbal Raw mean (Range) KBIT-2 Non-Verbal Raw mean (Range)
DS 52 (27) 140 (72–215) White-American (46.2%)
Black/African American (3.8%)
Hispanic/Latino (17.3%)
Other (23.1%)
Not disclosed (9.6%)		 22.1 (1–47) 12.8 (1–20)
TD 59 (23) 58 (33–81) White-American (59.3%)
Black/African American (0%)
Hispanic/Latino (13.5%)
Other (16.9%)
Not disclosed (10.2%)		 29.2 (4–49) 15.0 (1–32)