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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: Res Dev Disabil. 2018 May 1;77:98–113. doi: 10.1016/j.ridd.2018.04.014

Table 2.

Outcomes for t tests performed on demographic indicators, standard test scores, and PTA thresholds between children in the typical reading and dyslexic groups at each age.

8-9 year olds 10-12 year olds
t p t p
Age (years; months) 0.06 NS 0.69 NS
Socio-economic status (out of 64) 1.65 NS 0.82 NS
Reading Standard Score 5.87 < .001 7.63 < .001
Vocabulary Standard Score 2.17 .036 3.01 .004
Grammatical Standard Score 4.26 < .001 5.68 < .001
Forward Digit Span 2.00 .052 4.00 < .001
PTA Threshold 1.08 NS −0.58 NS

Note: Degrees of freedom are 40 for 8-9 year olds and 53 for 10-12 year olds. NS = not significant, meaning p > .10.