Before instruction, the experimental and control groups showed no statistically significant difference in vocabulary knowledge¶

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? An independent samples t-test on pre-test scores found no statistically significant difference between the experimental group (mean 19.97) and control group (mean 20.53). → Enayati and Gilakjani 2020

Evidence¶

Enayati and Gilakjani 2020¶

Fatemeh Enayati, & Abbas Pourhosein Gilakjani. (2020). The Impact of Computer Assisted Language Learning (CALL) on Improving Intermediate EFL Learners' Vocabulary Learning. International Journal of Language Education, 4(1). https://doi.org/10.26858/ijole.v4i2.10560

q2 · i? · causal · r1

Independent samples t-test comparing the two groups' pre-test vocabulary scores after PET-based homogenization; the article reports "no statistically significant difference", indicating the groups started with almost the same vocabulary knowledge. Equivalence was not formally tested.

"t-value and significance level ( t (59) = .56, p = .57, p > .05) are signs of no statistically significant difference in vocabulary learning scores for the experimental group ( 𝑥̅ = 19.97) and control g roup ( 𝑥̅ = 20.53)"

Discussion¶

Related Claims¶

• Experimental and control groups were homogeneous in idiom knowledge before treatment — related
• CAVI and TVI groups were equivalent in target vocabulary knowledge before the experiment — related
• Pre-test scores showed no statistically significant difference between control and experiment groups, confirming equivalent starting points before the homework intervention — related