Claims

Descriptive gains show the experimental group's attitude change exceeded the control group's, and pretesting had no effect on the intervention

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2015 · 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? The pretested experimental group E2 gained 17.0338 attitude points against 3.4861 for pretested control C1, and the unpretested groups' post-test margin was comparable to the pretested groups', which the authors read as pretesting having no effect. → M. J. Wangila 2015

Evidence

M. J. Wangila 2015

M. J. Wangila, W. Martin, M. Ronald. (2015). Effect of Programmed Instruction on Students' Attitude Towards Structure of the Atom and the Periodic Table among Kenyan Secondary Schools. Science Education International, Vol. 25, Issue 4, 488-500. https://eric.ed.gov/?id=EJ1086551

q2 · i? · causal · r2

Descriptive analysis (means, standard deviations, mean gains) of SADQ scores in Table 4 for the four groups. The article also reports the E2-C1 post-test margin grew six fold to 16.3225 marks and that the unpretested E1-C2 margin of 15.5707 was comparable, implying pretesting had no effect. These are descriptive statistics with no test reported.

"The Table further reveals that while the mean gain of the entire sample was 11.0053, the mean gains of the pretested groups E2 and C1 were 17.0338 and 3.4861 respectively, which shows that the experimental group had a greater attitude change than the control group."

Discussion

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