Most individual control-group learners' vocabulary scores declined from post-test to delayed post-test¶

Claim · All claims
Evidence · 2 studies · 2 causal r1–r2 · q2
Currency · newest study 2017 · checked against its sources 2026-11-02 (automated, 2 of 2 entries) · not reviewed by a person

Subclaims¶

q2 i? Almost all control-group learners showed a sharp decline in vocabulary test scores between the post-test and delayed post-test. → Nader Asadi Aidinlou & Alireza Moradinejad 2016

q2 i? By the end of week two, 13 of 14 control participants suffered a decline in retention success, of 1 to 5 words out of 30, while one enjoyed a rise limited to one word. → Bozavlı 2017

Evidence¶

Nader Asadi Aidinlou & Alireza Moradinejad 2016¶

Nader Asadi Aidinlou & Alireza Moradinejad. (2016). Short-term and Long-term Retention of Vocabulary through Authentic Subtitled Videos. Advances in Language and Literary Studies. https://doi.org/10.7575/aiac.alls.v.7n.5p.14

q2 · i? · causal · r2

Per-student comparison of vocabulary test scores in post-test and delayed post-test plotted for the control group in Figure 1; the text states all learners except three had a sharp decline, indicating inefficient long-term retention.

"As Figure 1 shows all learners in the control group (except students no. 10, 12 and 14) had a sharp decline in vocabulary test scores in their delayed post -test."

Bozavlı 2017¶

Bozavlı, E. (2017). Vocabulary Teaching in Foreign Language via Audiovisual Method Technique of Listening and Following Writing Scripts. International Education Studies, 10(5). https://doi.org/10.5539/ies.v10n5p129

q2 · i? · causal · r1

Descriptive analysis of the control group's week-two retention results after conventional vocabulary teaching. The article reports "13 participants suffered a decline in retention success, while one enjoyed a rise, albeit limited to one word"; only one participant remembered 13 words and ten remembered 5 to 10 words. Table 3 shows the size of each change: the 13 declines were of 1 to 5 words out of 30 (most of 1 to 3 words), and the group's success rates fell from 26.66–50% in week one to 16.66–43.33% in week two. The article does not call the declines sharp.

"13 participants suffered a decline in retention success, while one enjoyed a rise, albeit limited to one word."

Discussion¶

Related Claims¶

• Vocabulary retention declines between immediate and first delayed recall, then rises slightly between the first and second delayed tests — a broader claim this one bears on
• Both groups declined in vocabulary scores on the delayed posttest, possibly because rare off-list words were encountered too few times — related
• Learning from interactive whiteboard lessons supported by visual materials persisted, with only a small significant decline four weeks after the post-test — related
• The advantage of dual coding elucidation for correct lexical usage persists over a four-week delay — related
• The explanation assisted REACT group retains its advantage on a delayed test nine weeks after the intervention despite score decline — related
• Experimental-group learners maintained nearly the same vocabulary scores across the two test administrations — related
• Subtitled-video viewing outperformed traditional instruction on long-term vocabulary retention at a three-week delay — related
• Learners taught with the audiovisual method showed higher vocabulary retention in week two than learners taught with the conventional method — related