TABLE 1.

Predictor Variables, Including Standardized Composite Scores and Individual Test Item Data, Obtained During Kindergarten

Predictor Variable	Number of Items Included in Item Analyses
Standardized measures
Test of Early Math Ability–Second Edition (TEMA-2)	33
KeyMath–Revised (KM-R): subtests
Numeration	5
Addition	3
Measurement	9
Geometry	10
Developmental Test of Visual Perception–Second	–
Edition (DTVP-2) Position in Space, Figure
Ground, Form Constancy, and Visual Closure subtests
Rapid Automatized Naming (RAN)–Response Times	–
Colors, Objects, Numbers subtests examined separately
Stanford Binet–Fourth Edition Verbal score	–
Stanford Binet Quantitative Reasoning subtest score	11
Stanford Binet Visual/Abstract Reasoning Area score	–
Demographic variables
Child’s sex	–
Handedness	–
Socioeconomic status	–
Child knows own birthday	–
Mother’s education level	–