Skip to main content
. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Child Dev. 2012 Apr 26;83(4):1229–1244. doi: 10.1111/j.1467-8624.2012.01768.x

Table 1.

Descriptive Statistics for All Variables

Time point N M (Percent) SD Range
Male -- 213 (47) .50 0 – 1
Non-Asian minority -- 213 (39) .49 0 – 1
Maternal education (years) -- 188 16.15 1.77 10 – 18
Achievement test age (years) Fall 213 5.44 .33 4.64 – 6.21
Academic knowledge Fall 213 466.31 12.02 437 – 495
Spring 212 475.19 11.50 440 – 502
Applied problems Fall 213 434.90 13.55 396 – 467
Spring 212 446.36 14.86 413 – 485
Reading composite Fall 213 434.62 15.31 402.25–496.75
Spring 212 452.12 16.76 416.25–503.25
Letter-word identification Fall 213 376.63 28.92 305 – 508
Spring 212 409.02 29.74 348 – 515
Passage comprehension Fall 213 411.78 21.81 377 – 494
Spring 212 433.58 25.99 377 – 497
Picture vocabulary Fall 213 479.20 10.23 448 – 513
Spring 212 485.33 9.52 456 – 517
Sound awareness Fall 213 470.86 12.76 427 – 505
Spring 212 481.54 12.12 435 – 515
HTKS-EF Fall 203 27.89 9.02 0 – 40
Pre-kindergarten motor assessment age -- 193 4.96 .42 3.50 – 5.75
Fine motor composite (mean) -- 192 1.06 .17 .18 – 1.30
 Blocks (sum) -- 190 4.47 .84 1 – 5
 Design copy (sum) -- 192 5.36 1.24 0 – 7
 Draw-a-person (single item) -- 192 1.85 .48 0 – 2
Gross motor composite (sum) -- 161 8.13 2.11 0 – 11

HTKS-EF = Head-Toes-Knees-Shoulders EF task.