The experimental group's pre-to-post achievement gain was statistically significant (t = 9.79473, P = 0.0001)¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? The experimental group's mean rose from 18.6 to 32.6, a statistically significant change. → Magableh 2020

Evidence¶

Magableh 2020¶

Magableh, I. S. I., & Abdullah, A. (2020). On the Effectiveness of Differentiated Instruction in the Enhancement of Jordanian Students' Overall Achievement. International Journal of Instruction, 13(2), 533-548. https://doi.org/10.29333/iji.2020.13237a

q2 · i? · causal · r1

Within-group pre/post t-test for the experimental group in the same quasi-experimental study; the article reports the gain as "statistically significant" and attributes it to the experiment.

"the pre-test mean score was 18.6 and rose to reach 32.6 on the post-test. T-test value was 9.79473 and the significant P value was 0.0001 which was less than the significant level P< 0.05 which indicated that the change in the post-test for the experimental group was statistically significant"

Discussion¶

Related Claims¶

• Paired-samples t-tests show a significant mean-score gain from pre- to post-test in the VHPI group but not in the conventional-instruction group — related
• Experimental-group achievement rose significantly from pre- to post-test while the control group's gain was not significant — related
• The experimental group gained substantially in speaking scores from pre-test to post-test — related