Claims

RT-exposed underachievers earned significantly higher English learning achievement grades than control-group peers after remedial instruction

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q2 i? Second-semester English grades of the RT experimental group were significantly greater than the control group's, t=4.13, p<.001. → Chou 2013

Evidence

Chou 2013

Chou, C. (2013). A study on the effectiveness of applying "Readers' Theater" as English remedial instruction for underachievers. Taiwan Journal of TESOL, 10(1), 77-103. http://english.moe.gov.tw/ct.asp?xItem=7773&ctNode=516&mp=1

q2 · i? · causal · r2

Quasi-experimental study comparing semester grades of 25 RT-exposed and 24 control underachievers via paired- and independent-samples t-tests. The article reports "the t -value is 4.13" at the .001 level for the post-test grade comparison.

"it is clear from the independent t -test post -test results of the two groups’ second semester grades in Table 6 that the t -value is 4.13, which reached the .001 significance level and indicates that the English learning achievement (M=126.40) of the RT -exposed experimental group students is significantly greater than that of students in the control group (M=103.25)."

Discussion

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