Note: TOWRE-PDE = Test of Word Reading Efficiency, Phonemic Decoding Efficiency; LSS = Letter-Sound Survey; WJR-WA = Woodcock–Johnson Tests of Achievement, Revised, Word Attack; WRAT3-R = Wide Range Achievement Test–Revision 3, Reading; WJR-LW = Woodcock–Johnson Tests of Achievement, Revised, Letter-Word Identification; DS = developmental spelling; WRAT3-S = Wide Range Achievement Test–Revision 3, Spelling; NWM = Nelson Word Meaning; PR = Passage Reading Test; TOWRE-SWE = Test of Word Reading Efficiency, Sight Word Efficiency; U = unique variances.