Claims

Extrovert Iranian EFL learners learn vocabulary similarly from instructional and authentic video materials

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2016 · 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.

q3 i? The difference in posttest vocabulary scores between the authentic-video extrovert group and the instructional-video extrovert group was not statistically significant. → Isazadeh 2016

Evidence

Isazadeh 2016

Isazadeh, P., Makui, S. M. Z., & Ansarian, L. (2016). Effect of Instructional vs. Authentic Video Materials on Introvert and Extrovert Iranian EFL Learners' Vocabulary Learning. International Journal of Education & Literacy Studies, 4(4). https://doi.org/10.7575/aiac.ijels.v.4n.4p.1

q3 · i? · causal · r1

Independent samples t-test comparing group 1 (authentic video / extrovert) with group 3 (instructional video / extrovert) on the posttest. The groups "performed more or less the same" with p = .513; equivalence was not tested and no effect size is printed.

"instructional experimental group (group 3) ( M = 20.44, SD = 3.097) and authentic-video extrovert group (group 1) ( M = 19.88, SD = 2.906) performed more or less the same and mean difference between the two groups was not statistically significant, t (48) = 6.59, p = .513 > .05"

Discussion

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