What Works for Children with Literacy Difficulties? - Digital ...
What Works for Children with Literacy Difficulties? - Digital ...
What Works for Children with Literacy Difficulties? - Digital ...
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Pre- and post-test average scores (r.a’s), pre-test s.d’s (post-test s.d’s not given), gains (in<br />
months of r.a.), ratio gains, and effect sizes calculated using differences between gains<br />
over control group’s pre-test s.d.:<br />
pre-test post-test gain RG effect<br />
average (s.d.) average size<br />
(months)<br />
exps 6:11 (1:2) 7:9 10 1.7 0.33<br />
conts 6:6 (1:3) 6:11 5 0.8<br />
AI1 6:10 (1: 1) 7:11 13 2.2 0.53<br />
AI2 6:8 (1:4) 7:5 9 1.5 0.27<br />
Statistical significances (ns = non-significant; p probability; U = Mann-Whitney ‘U’ test<br />
value; ? = not stated):<br />
conts AI1 AI2<br />
U p U p U p<br />
Exps ? ? 50 ns 34 ns<br />
conts 2