Control group showed only slight speaking gains from pre-test to post-test¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2023: baselines and conditions change

Subclaims¶

q2 i? The control group's speaking mean rose only slightly from 14.08 to 15.00 over the study period. → Afraz 2018

Evidence¶

Afraz 2018¶

Afraz, S., Taghizade, L., & Taghinezhad, A. (2018). The Usefulness of Pictorial Aids in Developing Female Iranian Intermediate EFL Learners’ Speaking Proficiency. International Journal of Education & Literacy Studies, 6(1). https://doi.org/10.7575/aiac.ijels.v.6n.1p.38

q2 · i? · causal · r1

Paired-samples t-test on the control group's pre- and post-test speaking scores under traditional instruction; the article notes "the control group’s development compared to that of experimental group is very slight".

"The pre-test and post-test mean values of 14.08 and 15.00 show development in the participants’ speaking ability and the level p=0.000, (p<0.001) obtained through paired samples t-test indicates a statistical difference in speaking abil -ity of the control group"

Discussion¶

Related Claims¶

• The experimental group gained substantially in speaking scores from pre-test to post-test — related
• The control group also made statistically significant pretest-to-posttest gains in speaking and writing, so improvement was not exclusive to the short-stories treatment — reports the opposite
• Pictorial aids improve intermediate EFL learners' speaking proficiency compared with traditional instruction — related